title stringlengths 10 172 | question_id int64 469 40.1M | question_body stringlengths 22 48.2k | question_score int64 -44 5.52k | question_date stringlengths 20 20 | answer_id int64 497 40.1M | answer_body stringlengths 18 33.9k | answer_score int64 -38 8.38k | answer_date stringlengths 20 20 | tags list |
|---|---|---|---|---|---|---|---|---|---|
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,287 | <p>You could read chunks of 1,000 bytes or so from the end of the file into a buffer until you have 10 lines.</p>
| 1 | 2008-11-03T23:06:54Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,312 | <p>I think reading the last 2 KB or so of the file should make sure you get 10 lines, and shouldn't be too much of a resource hog.</p>
<pre><code>file_handle = open("somefile")
file_size = file_handle.tell()
file_handle.seek(max(file_size - 2*1024, 0))
# this will get rid of trailing newlines, unlike readlines()
last... | 7 | 2008-11-03T23:21:29Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,324 | <p>Personally I'd be tempted to break out to the shell and call tail -n10 to load the file. But then I'm not really a Python programmer ;)</p>
| 0 | 2008-11-03T23:27:11Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,339 | <p>I think I remember adapting the code from <a href="http://manugarg.blogspot.com/2007/04/tailing-in-python.html" rel="nofollow">this blog post from Manu Garg</a> when I had to do something similar.</p>
| 2 | 2008-11-03T23:35:00Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,352 | <pre><code># Tail
from __future__ import with_statement
find_str = "FIREFOX" # String to find
fname = "g:/autoIt/ActiveWin.log_2" # File to check
with open(fname, "r") as f:
f.seek (0, 2) # Seek @ EOF
fsize = f.tell() # Get Size
f.seek (max (fsize-1024, 0), 0) # Set... | 27 | 2008-11-03T23:40:34Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,359 | <p>First, a function that returns a list:</p>
<pre><code>def lastNLines(file, N=10, chunksize=1024):
lines = None
file.seek(0,2) # go to eof
size = file.tell()
for pos in xrange(chunksize,size-1,chunksize):
# read a chunk
file.seek(pos,2)
chunk = file.read(chunksize)
if ... | 0 | 2008-11-03T23:43:06Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,394 | <p>If you are running Python on a POSIX system, you can use 'tail -10' to retrieve the last few lines. This may be faster than writing your own Python code to get the last 10 lines. Rather than opening the file directly, open a pipe from the command 'tail -10 filename'. If you are certain of the log output though (for ... | 8 | 2008-11-04T00:04:13Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,407 | <p>If you're on a unix box, <code>os.popen("tail -10 " + filepath).readlines()</code> will probably be the fastest way. Otherwise, it depends on how robust you want it to be. The methods proposed so far will all fall down, one way or another. For robustness and speed in the most common case you probably want someth... | 1 | 2008-11-04T00:08:58Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,433 | <p>Here's an answer like MizardX's, but without its apparent problem of taking quadratic time in the worst case from rescanning the working string repeatedly for newlines as chunks are added.</p>
<p>Compared to the activestate solution (which also seems to be quadratic), this doesn't blow up given an empty file, and d... | 29 | 2008-11-04T00:19:26Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,648 | <p>I ran into that problem, parsing the last hour of LARGE syslog files, and used this function from activestate's recipe site... (<a href="http://code.activestate.com/recipes/439045/" rel="nofollow">http://code.activestate.com/recipes/439045/</a>)</p>
<pre><code>!/usr/bin/env python
# -*-mode: python; coding: iso-885... | 2 | 2008-11-04T02:37:04Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 260,973 | <p>Here is a version using <code>mmap</code> that seems pretty efficient. The big plus is that <code>mmap</code> will automatically handle the file to memory paging requirements for you.</p>
<pre><code>import os
from mmap import mmap
def lastn(filename, n):
# open the file and mmap it
f = open(filename, 'r+')... | 5 | 2008-11-04T05:21:41Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 262,921 | <p>This solution will read the file only once, but using 2 file object pointers to be able obtain the last N lines of file without re-reading it:</p>
<pre><code>def getLastLines (path, n):
# return the las N lines from the file indicated in path
fp = open(path)
for i in range(n):
line = fp.readlin... | 0 | 2008-11-04T18:50:40Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 262,988 | <p>You could also count the lines as you reverse through the file, instead of guessing at a byte offset. </p>
<pre><code>lines = 0
chunk_size = 1024
f = file('filename')
f.seek(0, 2)
f.seek(f.tell() - chunk_size)
while True:
s = f.read(chunk_size)
lines += s.count('\n')
if lines > NUM_OF_LINES:
... | 1 | 2008-11-04T19:03:35Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 2,436,554 | <p>Maybe this might be useful:</p>
<pre><code>import os.path
path = 'path_to_file'
os.system('tail -n1 ' + path)
</code></pre>
| 0 | 2010-03-12T23:30:58Z | [
"python",
"file",
"search"
] |
Most efficient way to search the last x lines of a file in python | 260,273 | <p>I have a file and I don't know how big it's going to be (it could be quite large, but the size will vary greatly). I want to search the last 10 lines or so to see if any of them match a string. I need to do this as quickly and efficiently as possible and was wondering if there's anything better than:</p>
<pre><co... | 29 | 2008-11-03T23:01:50Z | 17,841,165 | <p>I took mhawke's suggestion to use <code>mmap</code> and wrote a version that uses <code>rfind</code>:</p>
<pre><code>from mmap import mmap
import sys
def reverse_file(f):
mm = mmap(f.fileno(), 0)
nl = mm.size() - 1
prev_nl = mm.size()
while nl > -1:
nl = mm.rfind('\n', 0, nl)
yie... | 1 | 2013-07-24T17:43:52Z | [
"python",
"file",
"search"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 260,770 | <p>You can find information about Python audio here: <a href="http://wiki.python.org/moin/Audio/">http://wiki.python.org/moin/Audio/</a></p>
<p>It doesn't look like it can play .mp3 files without external libraries. You could either convert your .mp3 file to a .wav or other format, or use a library like <a href="http:... | 11 | 2008-11-04T03:27:13Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 260,901 | <p>Your best bet is probably to use <a href="http://www.pygame.org" rel="nofollow">pygame/SDL</a>. It's an external library, but it has great support across platforms.</p>
<pre><code>pygame.mixer.init()
pygame.mixer.music.load("file.mp3")
pygame.mixer.music.play()
</code></pre>
<p>You can find more specific documenta... | 19 | 2008-11-04T04:40:50Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 260,924 | <p>You can't do this without a nonstandard library.</p>
<p>for windows users who end up in this thread, try <a href="http://python.net/crew/mhammond/win32/" rel="nofollow">pythonwin</a>. <a href="http://www.pygame.org/docs/ref/mixer.html" rel="nofollow">PyGame</a> has some sound support. For hardware accelerated gam... | 1 | 2008-11-04T04:52:24Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 262,084 | <p><a href="http://pyglet.org/">Pyglet</a> has the ability to play back audio through an external library called <a href="http://code.google.com/p/avbin">AVbin</a>. Pyglet is a ctypes wrapper around native system calls on each platform it supports. Unfortunately, I don't think anything in the standard library will play... | 5 | 2008-11-04T14:37:24Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 507,464 | <p>If you need portable Python audio library try <a href="http://people.csail.mit.edu/hubert/pyaudio/">PyAudio</a>. It certainly has a mac port.</p>
<p>As for mp3 files: it's certainly doable in "raw" Python, only I'm afraid you'd have to code everything yourself :). If you can afford some external library I've found ... | 6 | 2009-02-03T15:08:52Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 14,018,627 | <p>You can see this: <a href="http://www.speech.kth.se/snack/" rel="nofollow">http://www.speech.kth.se/snack/</a></p>
<pre><code>s = Sound()
s.read('sound.wav')
s.play()
</code></pre>
| 4 | 2012-12-24T07:48:54Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 20,746,883 | <p>In <a href="http://pydub.com" rel="nofollow">pydub</a> we've recently <a href="https://github.com/jiaaro/pydub/blob/master/pydub/playback.py" rel="nofollow">opted to use ffplay (via subprocess)</a> from the ffmpeg suite of tools, which internally uses SDL.</p>
<p>It works for our purposes â mainly just making it ... | 8 | 2013-12-23T15:54:08Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 22,689,253 | <p>If you're on OSX, you can use the "os" module or "subprocess" etc. to call the OSX "play" command. From the OSX shell, it looks like </p>
<p>play "bah.wav"</p>
<p>It starts to play in about a half-second on my machine.</p>
| 0 | 2014-03-27T13:33:35Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 28,248,604 | <p>Also on OSX - from <a href="http://stackoverflow.com/questions/3498313/how-to-trigger-from-python-playing-of-a-wav-or-mp3-audio-file-on-a-mac">SO</a>, using OSX's <a href="https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/afplay.1.html" rel="nofollow">afplay</a> command:</p>
<pre>... | 2 | 2015-01-31T05:45:03Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 30,141,027 | <p>VLC has some nice python bindings here, for me this worked better than pyglet, at least on Mac OS:</p>
<p><a href="https://wiki.videolan.org/Python_bindings" rel="nofollow">https://wiki.videolan.org/Python_bindings</a></p>
<p>But it does rely on the VLC application, unfortunately</p>
| 1 | 2015-05-09T14:22:11Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 34,179,010 | <p>Sorry for the late reply, but I think this is a good place to advertise my library ...</p>
<p>AFAIK, the standard library has only one module for playing audio: <a href="https://docs.python.org/3/library/ossaudiodev.html" rel="nofollow">ossaudiodev</a>.
Sadly, this only works on Linux and FreeBSD.</p>
<p>UPDATE: T... | 3 | 2015-12-09T12:37:18Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 34,568,298 | <p>It is possible to play audio in OS X without any 3rd party libraries using an analogue of the following code. The raw audio data can be input with wave_wave.writeframes. This code extracts 4 seconds of audio from the input file.</p>
<pre><code>import wave
import io
from AppKit import NSSound
wave_output = io.Byte... | 1 | 2016-01-02T16:53:43Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 34,984,200 | <p><a href="http://stackoverflow.com/a/34568298/901641">Aaron's answer</a> appears to be about 10x more complicated than necessary. Just do this if you only need an answer that works on OS X:</p>
<pre><code>from AppKit import NSSound
sound = NSSound.alloc()
sound.initWithContentsOfFile_byReference_('/path/to/file.wav... | 1 | 2016-01-25T02:24:09Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 36,115,093 | <p>Simply You can do it with the help of cvlc-
I did it in this way:</p>
<pre><code>import os
os.popen2("cvlc /home/maulo/selfProject/task.mp3 --play-and-exit")
</code></pre>
<p>/home/maulo/selfProject/task.mp3. This is the location of my mp3 file.
with the help of "--play-and-exit" you will be able to play again th... | 0 | 2016-03-20T14:41:10Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 36,284,043 | <p>Take a look at <a href="http://simpleaudio.readthedocs.org/en/latest/index.html" rel="nofollow">Simpleaudio</a>, which is a relatively recent and lightweight library for this purpose:</p>
<pre><code>> pip install simpleaudio
</code></pre>
<p>Then:</p>
<pre><code>import simpleaudio as sa
wave_obj = sa.WaveObje... | 1 | 2016-03-29T12:17:17Z | [
"python",
"audio"
] |
Play audio with Python | 260,738 | <p>How can I play audio (it would be like a 1 second sound) from a Python script?</p>
<p>It would be best if it was platform independent, but firstly it needs to work on a Mac.</p>
<p>I know I could just execute the <code>afplay file.mp3</code> command from within Python, but is it possible to do it in raw Python? I ... | 63 | 2008-11-04T03:11:03Z | 37,501,920 | <p>Throwing in another library into the bucket:</p>
<p><a href="https://github.com/bastibe/PySoundCard" rel="nofollow">https://github.com/bastibe/PySoundCard</a></p>
<p>PySoundCard uses PortAudio for playback which is available on many platforms.
In addition, it recognizes "professional" sound devices with lots of ch... | 0 | 2016-05-28T17:30:18Z | [
"python",
"audio"
] |
How to build Python C extension modules with autotools | 261,500 | <p>Most of the documentation available for building Python extension modules
uses distutils, but I would like to achieve this by using the appropriate
python autoconf & automake macros instead.</p>
<p>I'd like to know if there is an open source project out there that does
exactly this. Most of the ones I've found ... | 7 | 2008-11-04T10:46:43Z | 261,839 | <p>All PyGTK extensions use autotools, so if the PyGTK aspects don't kill the whole thing for you, it might be worth having a look at the <a href="http://svn.gnome.org/viewvc/pygtk/trunk/" rel="nofollow">PyGTK source code</a>. Additionally, <a href="http://bazaar.launchpad.net/~poppler-python/poppler-python/trunk/files... | 4 | 2008-11-04T13:10:44Z | [
"c++",
"python",
"c",
"autotools"
] |
How to build Python C extension modules with autotools | 261,500 | <p>Most of the documentation available for building Python extension modules
uses distutils, but I would like to achieve this by using the appropriate
python autoconf & automake macros instead.</p>
<p>I'd like to know if there is an open source project out there that does
exactly this. Most of the ones I've found ... | 7 | 2008-11-04T10:46:43Z | 13,711,218 | <p>Supposing that you have a project with a directory called <code>src</code>, so let's follow the follow steps to get a python extension built and packaged using autotools:</p>
<h2>Create the Makefile.am files</h2>
<p>First, you need to create one Makefile.am in the root of your project, basically (but not exclusive... | 11 | 2012-12-04T20:22:22Z | [
"c++",
"python",
"c",
"autotools"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 261,645 | <p>Python, being a byte-code-compiled interpreted language, is very difficult to lock down. Even if you use a exe-packager like <a href="http://py2exe.org">py2exe</a>, the layout of the executable is well-known, and the Python byte-codes are well understood.</p>
<p>Usually in cases like this, you have to make a trade... | 277 | 2008-11-04T12:00:34Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 261,704 | <p>You should take a look at how the guys at getdropbox.com do it for their client software, including Linux. It's quite tricky to crack and requires some quite creative disassembly to get past the protection mechanisms.</p>
| 5 | 2008-11-04T12:20:21Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 261,719 | <p>Is your employer aware that he can "steal" back any ideas that other people get from your code? I mean, if they can read your work, so can you theirs. Maybe looking at how you can benefit from the situation would yield a better return of your investment than fearing how much you could lose.</p>
<p>[EDIT] Answer to ... | 30 | 2008-11-04T12:27:52Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 261,723 | <p>I have looked at software protection in general for my own projects and the general philosophy is that complete protection is impossible. The only thing that you can hope to achieve is to add protection to a level that would cost your customer more to bypass than it would to purchase another license.</p>
<p>With t... | 4 | 2008-11-04T12:28:38Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 261,727 | <p>"Is there a good way to handle this problem?" No. Nothing can be protected against reverse engineering. Even the firmware on DVD machines has been reverse engineered and <a href="http://en.wikipedia.org/wiki/AACS%5Fencryption%5Fkey%5Fcontroversy">AACS Encryption key</a> exposed. And that's in spite of the DMCA m... | 395 | 2008-11-04T12:29:24Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 261,728 | <p>In some circumstances, it may be possible to move (all, or at least a key part) of the software into a web service that your organization hosts.</p>
<p>That way, the license checks can be performed in the safety of your own server room.</p>
| 12 | 2008-11-04T12:29:48Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 261,797 | <p>Depending in who the client is, a simple protection mechanism, combined with a sensible license agreement will be <em>far</em> more effective than any complex licensing/encryption/obfuscation system.</p>
<p>The best solution would be selling the code as a service, say by hosting the service, or offering support - a... | 8 | 2008-11-04T12:53:25Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 261,808 | <p>What about signing your code with standard encryption schemes by hashing and signing important files and checking it with public key methods?</p>
<p>In this way you can issue license file with a public key for each customer.</p>
<p>Additional you can use an python obfuscator like <a href="http://www.lysator.liu.se... | 7 | 2008-11-04T12:59:04Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 261,817 | <h1>Python is not the tool you need</h1>
<p>You must use the right tool to do the right thing, and Python was not designed to be obfuscated. It's the contrary; everything is open or easy to reveal or modify in Python because that's the language's philosophy.</p>
<p>If you want something you can't see through, look fo... | 289 | 2008-11-04T13:03:06Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 262,895 | <p>The best you can do with Python is to obscure things.</p>
<ul>
<li>Strip out all docstrings</li>
<li>Distribute only the .pyc compiled files.</li>
<li>freeze it</li>
<li>Obscure your constants inside a class/module so that help(config) doesn't show everything</li>
</ul>
<p>You may be able to add some additional ob... | 5 | 2008-11-04T18:45:18Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 262,937 | <p>Do not rely on obfuscation. As You have correctly concluded, it offers very limited protection.
UPDATE: Here is a <a href="https://www.usenix.org/system/files/conference/woot13/woot13-kholia.pdf">link to paper</a> which reverse engineered obfuscated python code in Dropbox. The approach - opcode remapping is a good b... | 19 | 2008-11-04T18:53:11Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 263,314 | <p>The reliable only way to protect code is to run it on a server you control and provide your clients with a client which interfaces with that server.</p>
| 7 | 2008-11-04T20:27:05Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 264,450 | <p>Though there's no perfect solution, the following can be done:</p>
<ol>
<li>Move some critical piece of startup code into a native library.</li>
<li>Enforce the license check in the native library.</li>
</ol>
<p>If the call to the native code were to be removed, the program wouldn't start anyway. If it's not remov... | 13 | 2008-11-05T06:10:26Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 267,875 | <p>I understand that you want your customers to use the power of python but do not want expose the source code.</p>
<p>Here are my suggestions:</p>
<p>(a) Write the critical pieces of the code as C or C++ libraries and then use <a href="http://www.riverbankcomputing.co.uk/software/sip/intro">SIP</a> or <a href="http:... | 52 | 2008-11-06T07:41:59Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 554,565 | <p>Shipping .pyc files has its problems - they are not compatible with any other python version than the python version they were created with, which means you must know which python version is running on the systems the product will run on. That's a very limiting factor.</p>
| 11 | 2009-02-16T21:09:33Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 827,080 | <p>Another attempt to make your code harder to steal is to use jython and then use <a href="http://proguard.sourceforge.net/">java obfuscator</a>. </p>
<p>This should work pretty well as jythonc translate python code to java and then java is compiled to bytecode. So ounce you obfuscate the classes it will be really ha... | 8 | 2009-05-05T21:53:15Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 2,987,179 | <p>Idea of having time restricted license and check for it in locally installed program will not work. Even with perfect obfuscation, license check can be removed. However if you check license on remote system and run significant part of the program on your closed remote system, you will be able to protect your IP.</p>... | 4 | 2010-06-07T05:07:06Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 7,347,168 | <h2>Compile python and distribute binaries!</h2>
<p><strong>Sensible idea:</strong> </p>
<p>Use <a href="http://cython.org/">Cython</a> (or something similar) to compile python to C code, then distribute your app as python binary libraries (pyd) instead.</p>
<p>That way, no Python (byte) code is left and you've done... | 83 | 2011-09-08T11:14:04Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 9,547,169 | <p>using cxfreeze ( py2exe for linux ) will do the job.</p>
<p><a href="http://cx-freeze.sourceforge.net/" rel="nofollow">http://cx-freeze.sourceforge.net/</a></p>
<p>it is available in ubuntu repositories</p>
| 3 | 2012-03-03T15:13:13Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 10,593,293 | <p><a href="http://www.bitboost.com" rel="nofollow">www.bitboost.com</a> offers a python obfuscator. Full disclosure: the author is a friend of mine.</p>
| 4 | 2012-05-15T02:00:40Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 11,315,793 | <p>I think there is one more method to protect your Python code; part of the Obfuscation method. I beleive there was a game like Mount and Blade or something that changed and recompiled their own python interpreter (the original interpreter which i believe is open source) and just changed the OP codes in the OP code ta... | 8 | 2012-07-03T17:07:27Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 16,695,056 | <p>It is possible to have the py2exe byte-code in a crypted resource for a C launcher that loads and executes it in memory. Some ideas <a href="http://evilzone.org/hacking-and-security/encrypting-programs-how-does-that-work/10/?wap2" rel="nofollow">here</a> and <a href="http://bubblews.com/news/430170-crypter-small-gui... | 3 | 2013-05-22T14:53:50Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
How do I protect Python code? | 261,638 | <p>I am developing a piece of software in Python that will be distributed to my employer's customers. My employer wants to limit the usage of the software with a time restricted license file.</p>
<p>If we distribute the .py files or even .pyc files it will be easy to (decompile and) remove the code that checks the lic... | 408 | 2008-11-04T11:57:27Z | 30,121,460 | <p>Have you had a look at <a href="https://liftoff.github.io/pyminifier/">pyminifier</a>? It does Minify, obfuscate, and compress Python code. The example code looks pretty nasty for casual reverse engineering.</p>
<pre><code>$ pyminifier --nonlatin --replacement-length=50 /tmp/tumult.py
#!/usr/bin/env python3
ïºå¼í... | 9 | 2015-05-08T10:21:58Z | [
"python",
"licensing",
"obfuscation",
"copy-protection"
] |
Converting a List of Tuples into a Dict in Python | 261,655 | <p>I have a list of tuples like this:</p>
<pre><code>[
('a', 1),
('a', 2),
('a', 3),
('b', 1),
('b', 2),
('c', 1),
]
</code></pre>
<p>I want to iterate through this keying by the first item, so for example I could print something like this:</p>
<pre><code>a 1 2 3
b 1 2
c 1
</code></pre>
<p>How would I go about doin... | 29 | 2008-11-04T12:03:34Z | 261,665 | <pre><code>l = [
('a', 1),
('a', 2),
('a', 3),
('b', 1),
('b', 2),
('c', 1),
]
d = {}
for x, y in l:
d.setdefault(x, []).append(y)
print d
</code></pre>
<p>produces:</p>
<pre><code>{'a': [1, 2, 3], 'c': [1], 'b': [1, 2]}
</code></pre>
| 27 | 2008-11-04T12:07:21Z | [
"python",
"data-structures",
"iteration"
] |
Converting a List of Tuples into a Dict in Python | 261,655 | <p>I have a list of tuples like this:</p>
<pre><code>[
('a', 1),
('a', 2),
('a', 3),
('b', 1),
('b', 2),
('c', 1),
]
</code></pre>
<p>I want to iterate through this keying by the first item, so for example I could print something like this:</p>
<pre><code>a 1 2 3
b 1 2
c 1
</code></pre>
<p>How would I go about doin... | 29 | 2008-11-04T12:03:34Z | 261,677 | <p>Slightly simpler...</p>
<pre><code>>>> from collections import defaultdict
>>> fq= defaultdict( list )
>>> for n,v in myList:
fq[n].append(v)
>>> fq
defaultdict(<type 'list'>, {'a': [1, 2, 3], 'c': [1], 'b': [1, 2]})
</code></pre>
| 23 | 2008-11-04T12:11:52Z | [
"python",
"data-structures",
"iteration"
] |
Converting a List of Tuples into a Dict in Python | 261,655 | <p>I have a list of tuples like this:</p>
<pre><code>[
('a', 1),
('a', 2),
('a', 3),
('b', 1),
('b', 2),
('c', 1),
]
</code></pre>
<p>I want to iterate through this keying by the first item, so for example I could print something like this:</p>
<pre><code>a 1 2 3
b 1 2
c 1
</code></pre>
<p>How would I go about doin... | 29 | 2008-11-04T12:03:34Z | 261,766 | <p>A solution using groupby</p>
<pre><code> >>> from itertools import groupby
>>> l = [('a',1), ('a', 2),('a', 3),('b', 1),('b', 2),('c', 1),]
>>> [(label, [v for l,v in value]) for (label, value) in groupby(l, lambda x:x[0])]
[('a', [1, 2, 3]), ('b', [1, 2]), ('c', [1])]
</co... | 8 | 2008-11-04T12:42:32Z | [
"python",
"data-structures",
"iteration"
] |
Converting a List of Tuples into a Dict in Python | 261,655 | <p>I have a list of tuples like this:</p>
<pre><code>[
('a', 1),
('a', 2),
('a', 3),
('b', 1),
('b', 2),
('c', 1),
]
</code></pre>
<p>I want to iterate through this keying by the first item, so for example I could print something like this:</p>
<pre><code>a 1 2 3
b 1 2
c 1
</code></pre>
<p>How would I go about doin... | 29 | 2008-11-04T12:03:34Z | 262,530 | <p>I would just do the basic</p>
<pre>
answer = {}
for key, value in list_of_tuples:
if key in answer:
answer[key].append(value)
else:
answer[key] = [value]
</pre>
<p>If it's this short, why use anything complicated. Of course if you don't mind using setdefault that's okay too.</p>
| 1 | 2008-11-04T17:06:28Z | [
"python",
"data-structures",
"iteration"
] |
Converting a List of Tuples into a Dict in Python | 261,655 | <p>I have a list of tuples like this:</p>
<pre><code>[
('a', 1),
('a', 2),
('a', 3),
('b', 1),
('b', 2),
('c', 1),
]
</code></pre>
<p>I want to iterate through this keying by the first item, so for example I could print something like this:</p>
<pre><code>a 1 2 3
b 1 2
c 1
</code></pre>
<p>How would I go about doin... | 29 | 2008-11-04T12:03:34Z | 1,694,768 | <h3>Print list of tuples grouping by the first item</h3>
<p>This answer is based on <a href="http://stackoverflow.com/questions/261655/converting-a-list-of-tuples-into-a-dict-in-python/261766#261766">the @gommen one</a>.</p>
<pre><code>#!/usr/bin/env python
from itertools import groupby
from operator import itemget... | 1 | 2009-11-07T23:11:33Z | [
"python",
"data-structures",
"iteration"
] |
How do I safely decode a degrees symbol in a wxPython app? | 262,249 | <p>I have a debug app I've been writing which receives data from a C-based process via UDP. One of the strings sent to me contains a <code>°</code> character - <a href="http://en.wikipedia.org/wiki/Degree_symbol" rel="nofollow">Unicode U+00B0</a> (which incidentally breaks the StackOverflow search function!). When my ... | 0 | 2008-11-04T16:07:01Z | 262,433 | <p>I can't say mych about wxPython itself, but I am guessing that it is trying to convert the text to Unicode before displaying it, If you have a string like <code>'123\xB0'</code> and try to convert it to Unicode with teh default encoding (ASCII) then it will throw <code>UnicodeDecodeError</code>. You can probably fix... | 1 | 2008-11-04T16:48:22Z | [
"python",
"unicode",
"wxpython",
"decode",
"textctrl"
] |
How do I safely decode a degrees symbol in a wxPython app? | 262,249 | <p>I have a debug app I've been writing which receives data from a C-based process via UDP. One of the strings sent to me contains a <code>°</code> character - <a href="http://en.wikipedia.org/wiki/Degree_symbol" rel="nofollow">Unicode U+00B0</a> (which incidentally breaks the StackOverflow search function!). When my ... | 0 | 2008-11-04T16:07:01Z | 263,330 | <p>pdc got it right, the following works fine (but fails without the <code>decode</code>):</p>
<pre><code>#!/usr/bin/env python
# -*- coding: utf-8 -*-
import wx
app = wx.PySimpleApp()
app.TopWindow = wx.Frame(None)
field = wx.TextCtrl(app.TopWindow)
field.Value += '°'.decode('ISO8859-1')
app.TopWindow.Show()
app.Ma... | 2 | 2008-11-04T20:34:13Z | [
"python",
"unicode",
"wxpython",
"decode",
"textctrl"
] |
How do I safely decode a degrees symbol in a wxPython app? | 262,249 | <p>I have a debug app I've been writing which receives data from a C-based process via UDP. One of the strings sent to me contains a <code>°</code> character - <a href="http://en.wikipedia.org/wiki/Degree_symbol" rel="nofollow">Unicode U+00B0</a> (which incidentally breaks the StackOverflow search function!). When my ... | 0 | 2008-11-04T16:07:01Z | 13,496,753 | <p>Things may have been different back when this was asked, but my thoughts for anyone who stumbles on this:</p>
<p>The issue is wxPython is trying to convert TO unicode, and lacking charset information it tries to use ASCII, which is invalid. If you know your data is utf-8, tell it so and it'll just work.</p>
<pre>... | 0 | 2012-11-21T15:42:08Z | [
"python",
"unicode",
"wxpython",
"decode",
"textctrl"
] |
making a programme run indefinitely in python | 262,460 | <p>Is there any way to make a function (the ones I'm thinking of are in the style of the simple ones I've made which generate the fibonnacci sequence from 0 to a point, and all the primes between two points) run indefinitely. E.g. until I press a certain key or until a time has passed, rather than until a number reac... | 0 | 2008-11-04T16:53:45Z | 262,474 | <p>As in almost all languages:</p>
<pre><code>while True:
# check what you want and eventually break
print nextValue()
</code></pre>
<p>The second part of your question is more interesting:</p>
<blockquote>
<p>Also, if it is based on time then is there anyway I could just extend the time and start it going fro... | 0 | 2008-11-04T16:55:50Z | [
"python",
"time",
"key",
"indefinite"
] |
making a programme run indefinitely in python | 262,460 | <p>Is there any way to make a function (the ones I'm thinking of are in the style of the simple ones I've made which generate the fibonnacci sequence from 0 to a point, and all the primes between two points) run indefinitely. E.g. until I press a certain key or until a time has passed, rather than until a number reac... | 0 | 2008-11-04T16:53:45Z | 262,490 | <p>The simplest way is just to write a program with an infinite loop, and then hit control-C to stop it. Without more description it's hard to know if this works for you.</p>
<p>If you do it time-based, you don't need a generator. You can just have it pause for user input, something like a "Continue? [y/n]", read from... | 1 | 2008-11-04T16:58:14Z | [
"python",
"time",
"key",
"indefinite"
] |
making a programme run indefinitely in python | 262,460 | <p>Is there any way to make a function (the ones I'm thinking of are in the style of the simple ones I've made which generate the fibonnacci sequence from 0 to a point, and all the primes between two points) run indefinitely. E.g. until I press a certain key or until a time has passed, rather than until a number reac... | 0 | 2008-11-04T16:53:45Z | 262,520 | <p>If you use a child thread to run the function while the main thread waits for character input it should work. Just remember to have something that stops the child thread (in the example below the global runthread)</p>
<p>For example:</p>
<pre><code>import threading, time
runthread = 1
def myfun():
while runthr... | 0 | 2008-11-04T17:04:28Z | [
"python",
"time",
"key",
"indefinite"
] |
making a programme run indefinitely in python | 262,460 | <p>Is there any way to make a function (the ones I'm thinking of are in the style of the simple ones I've made which generate the fibonnacci sequence from 0 to a point, and all the primes between two points) run indefinitely. E.g. until I press a certain key or until a time has passed, rather than until a number reac... | 0 | 2008-11-04T16:53:45Z | 262,542 | <p>If you really want your function to run and still wants user (or system) input, you have two solutions:</p>
<ol>
<li>multi-thread</li>
<li>multi-process</li>
</ol>
<p>It will depend on how fine the interaction. If you just want to interrupt the function and don't care about the exit, then multi-process is fine.</p... | 0 | 2008-11-04T17:10:49Z | [
"python",
"time",
"key",
"indefinite"
] |
making a programme run indefinitely in python | 262,460 | <p>Is there any way to make a function (the ones I'm thinking of are in the style of the simple ones I've made which generate the fibonnacci sequence from 0 to a point, and all the primes between two points) run indefinitely. E.g. until I press a certain key or until a time has passed, rather than until a number reac... | 0 | 2008-11-04T16:53:45Z | 262,852 | <p>If you want to exit based on time, you can use the signal module's alarm(time) function, and the catch the SIGALRM - here's an example <a href="http://docs.python.org/library/signal.html#example" rel="nofollow">http://docs.python.org/library/signal.html#example</a></p>
<p>You can let the user interrupt the program ... | 0 | 2008-11-04T18:29:31Z | [
"python",
"time",
"key",
"indefinite"
] |
making a programme run indefinitely in python | 262,460 | <p>Is there any way to make a function (the ones I'm thinking of are in the style of the simple ones I've made which generate the fibonnacci sequence from 0 to a point, and all the primes between two points) run indefinitely. E.g. until I press a certain key or until a time has passed, rather than until a number reac... | 0 | 2008-11-04T16:53:45Z | 263,876 | <p>You could do something like this to generate fibonnacci numbers for 1 second then stop.</p>
<pre><code>fibonnacci = [1,1]
stoptime = time.time() + 1 # set stop time to 1 second in the future
while time.time() < stoptime:
fibonnacci.append(fibonnacci[-1]+fibonnacci[-2])
print "Generated %s numbers, the last on... | -1 | 2008-11-04T23:27:14Z | [
"python",
"time",
"key",
"indefinite"
] |
making a programme run indefinitely in python | 262,460 | <p>Is there any way to make a function (the ones I'm thinking of are in the style of the simple ones I've made which generate the fibonnacci sequence from 0 to a point, and all the primes between two points) run indefinitely. E.g. until I press a certain key or until a time has passed, rather than until a number reac... | 0 | 2008-11-04T16:53:45Z | 264,614 | <p>You could use a generator for this:</p>
<pre><code>def finished():
"Define your exit condition here"
return ...
def count(i=0):
while not finished():
yield i
i += 1
for i in count():
print i
</code></pre>
<p>If you want to change the exit condition you could pass a value back into... | 0 | 2008-11-05T08:33:49Z | [
"python",
"time",
"key",
"indefinite"
] |
Is it possible to change the Environment of a parent process in python? | 263,005 | <p>In Linux When I invoke python from the shell it replicates its environment, and starts the python process. Therefore if I do something like the following:</p>
<pre><code>import os
os.environ["FOO"] = "A_Value"
</code></pre>
<p>When the python process returns, FOO, assuming it was undefined originally, will still b... | 11 | 2008-11-04T19:08:16Z | 263,022 | <p>It's not possible, for any child process, to change the environment of the parent process. The best you can do is to output shell statements to stdout that you then source, or write it to a file that you source in the parent.</p>
| 11 | 2008-11-04T19:12:44Z | [
"python",
"linux",
"environment"
] |
Is it possible to change the Environment of a parent process in python? | 263,005 | <p>In Linux When I invoke python from the shell it replicates its environment, and starts the python process. Therefore if I do something like the following:</p>
<pre><code>import os
os.environ["FOO"] = "A_Value"
</code></pre>
<p>When the python process returns, FOO, assuming it was undefined originally, will still b... | 11 | 2008-11-04T19:08:16Z | 263,068 | <p>No process can change its parent process (or any other existing process' environment).</p>
<p>You can, however, create a new environment by creating a new interactive shell with the modified environment.</p>
<p>You have to spawn a new copy of the shell that uses the upgraded environment and has access to the exist... | 9 | 2008-11-04T19:27:27Z | [
"python",
"linux",
"environment"
] |
Is it possible to change the Environment of a parent process in python? | 263,005 | <p>In Linux When I invoke python from the shell it replicates its environment, and starts the python process. Therefore if I do something like the following:</p>
<pre><code>import os
os.environ["FOO"] = "A_Value"
</code></pre>
<p>When the python process returns, FOO, assuming it was undefined originally, will still b... | 11 | 2008-11-04T19:08:16Z | 263,162 | <p>I would use the bash eval statement, and have the python script output the shell code</p>
<p>child.py:</p>
<pre><code>#!/usr/bin/env python
print 'FOO="A_Value"'
</code></pre>
<p>parent.sh</p>
<pre><code>#!/bin/bash
eval `./child.py`
</code></pre>
| 7 | 2008-11-04T19:41:03Z | [
"python",
"linux",
"environment"
] |
Creating a python win32 service | 263,296 | <p>I am currently trying to create a win32 service using pywin32. My main point of reference has been this tutorial:</p>
<p><a href="http://code.activestate.com/recipes/551780/">http://code.activestate.com/recipes/551780/</a></p>
<p>What i don't understand is the initialization process, since the Daemon is never init... | 11 | 2008-11-04T20:23:17Z | 264,871 | <p>I've never used these APIs, but digging through the code, it looks like the class passed in is used to register the name of the class in the registry, so you can't do any initialization of your own. But there's a method called GetServiceCustomOption that may help:</p>
<p><a href="http://mail.python.org/pipermail/p... | 5 | 2008-11-05T11:18:14Z | [
"python",
"winapi",
"pywin32"
] |
Creating a python win32 service | 263,296 | <p>I am currently trying to create a win32 service using pywin32. My main point of reference has been this tutorial:</p>
<p><a href="http://code.activestate.com/recipes/551780/">http://code.activestate.com/recipes/551780/</a></p>
<p>What i don't understand is the initialization process, since the Daemon is never init... | 11 | 2008-11-04T20:23:17Z | 900,775 | <p>I just create a simple "how to" where the program is in one module and the service is in another place, it uses py2exe to create the win32 service, which I believe is the best you can do for your users that don't want to mess with the python interpreter or other dependencies.</p>
<p>You can check my tutorial here: ... | 9 | 2009-05-23T03:20:19Z | [
"python",
"winapi",
"pywin32"
] |
Merging/adding lists in Python | 263,457 | <p>I'm pretty sure there should be a more Pythonic way of doing this - but I can't think of one: How can I merge a two-dimensional list into a one-dimensional list? Sort of like zip/map but with more than two iterators.</p>
<p>Example - I have the following list:</p>
<pre><code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9... | 33 | 2008-11-04T21:06:36Z | 263,465 | <pre><code>[sum(a) for a in zip(*array)]
</code></pre>
| 68 | 2008-11-04T21:16:39Z | [
"python",
"list"
] |
Merging/adding lists in Python | 263,457 | <p>I'm pretty sure there should be a more Pythonic way of doing this - but I can't think of one: How can I merge a two-dimensional list into a one-dimensional list? Sort of like zip/map but with more than two iterators.</p>
<p>Example - I have the following list:</p>
<pre><code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9... | 33 | 2008-11-04T21:06:36Z | 263,523 | <p>[sum(value) for value in zip(*array)] is pretty standard.</p>
<p>This might help you understand it:</p>
<pre><code>In [1]: array=[[1, 2, 3], [4, 5, 6], [7, 8, 9]]
In [2]: array
Out[2]: [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
In [3]: *array
------------------------------------------------------------
File "<ipyth... | 62 | 2008-11-04T21:33:47Z | [
"python",
"list"
] |
Merging/adding lists in Python | 263,457 | <p>I'm pretty sure there should be a more Pythonic way of doing this - but I can't think of one: How can I merge a two-dimensional list into a one-dimensional list? Sort of like zip/map but with more than two iterators.</p>
<p>Example - I have the following list:</p>
<pre><code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9... | 33 | 2008-11-04T21:06:36Z | 265,472 | <p>If you're doing a lot of this kind of thing, you want to learn about <a href="http://scipy.org/"><code>scipy</code>.</a></p>
<pre><code>>>> import scipy
>>> sum(scipy.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]))
array([12, 15, 18])
</code></pre>
<p>All array sizes are checked for you automatically. ... | 8 | 2008-11-05T15:24:08Z | [
"python",
"list"
] |
Merging/adding lists in Python | 263,457 | <p>I'm pretty sure there should be a more Pythonic way of doing this - but I can't think of one: How can I merge a two-dimensional list into a one-dimensional list? Sort of like zip/map but with more than two iterators.</p>
<p>Example - I have the following list:</p>
<pre><code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9... | 33 | 2008-11-04T21:06:36Z | 265,495 | <p>An alternative way:</p>
<pre><code>map(sum, zip(*array))
</code></pre>
| 13 | 2008-11-05T15:31:04Z | [
"python",
"list"
] |
Merging/adding lists in Python | 263,457 | <p>I'm pretty sure there should be a more Pythonic way of doing this - but I can't think of one: How can I merge a two-dimensional list into a one-dimensional list? Sort of like zip/map but with more than two iterators.</p>
<p>Example - I have the following list:</p>
<pre><code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9... | 33 | 2008-11-04T21:06:36Z | 5,113,719 | <p>Agree with fivebells, but you could also use Numpy, which is a smaller (quicker import) and more generic implementation of array-like stuff. (actually, it is a dependency of scipy). These are great tools which, as have been said, are a 'must use' if you deal with this kind of manipulations.</p>
| 3 | 2011-02-25T04:45:31Z | [
"python",
"list"
] |
Merging/adding lists in Python | 263,457 | <p>I'm pretty sure there should be a more Pythonic way of doing this - but I can't think of one: How can I merge a two-dimensional list into a one-dimensional list? Sort of like zip/map but with more than two iterators.</p>
<p>Example - I have the following list:</p>
<pre><code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9... | 33 | 2008-11-04T21:06:36Z | 13,240,341 | <p>Late to the game, and it's not as good of an answer as some of the others, but I thought it was kind of cute:</p>
<pre><code>map(lambda *x:sum(x),*array)
</code></pre>
<p>it's too bad that <code>sum(1,2,3)</code> doesn't work. If it did, we could eliminate the silly <code>lambda</code> in there, but I suppose tha... | 2 | 2012-11-05T21:04:10Z | [
"python",
"list"
] |
Merging/adding lists in Python | 263,457 | <p>I'm pretty sure there should be a more Pythonic way of doing this - but I can't think of one: How can I merge a two-dimensional list into a one-dimensional list? Sort of like zip/map but with more than two iterators.</p>
<p>Example - I have the following list:</p>
<pre><code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9... | 33 | 2008-11-04T21:06:36Z | 27,910,105 | <p>It's not concise but it does work for adding lists of any size i.e. the list lengths do not match.</p>
<pre><code>def add_vectors(v1, v2):
"""
takes two lists of ints of any size and returns a third list
equal to the sum of their elements.
"""
vsum = []
v1len = len(v1)
v2len = len(v2)
... | 0 | 2015-01-12T20:21:00Z | [
"python",
"list"
] |
Merging/adding lists in Python | 263,457 | <p>I'm pretty sure there should be a more Pythonic way of doing this - but I can't think of one: How can I merge a two-dimensional list into a one-dimensional list? Sort of like zip/map but with more than two iterators.</p>
<p>Example - I have the following list:</p>
<pre><code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9... | 33 | 2008-11-04T21:06:36Z | 29,433,541 | <blockquote>
<p>[sum(a) for a in zip(*array)]</p>
</blockquote>
<p>I like that. I needed something related for interleaving objects in to a list of items, came up with something similar but more concise for even length lists:</p>
<pre><code>sum(zip(*array),())
</code></pre>
<p>for example, interleaving two lists:... | 0 | 2015-04-03T13:55:00Z | [
"python",
"list"
] |
Merging/adding lists in Python | 263,457 | <p>I'm pretty sure there should be a more Pythonic way of doing this - but I can't think of one: How can I merge a two-dimensional list into a one-dimensional list? Sort of like zip/map but with more than two iterators.</p>
<p>Example - I have the following list:</p>
<pre><code>array = [[1, 2, 3], [4, 5, 6], [7, 8, 9... | 33 | 2008-11-04T21:06:36Z | 29,439,639 | <p>You can simply do this:</p>
<pre><code>print [sum(x) for x in zip(*array)]
</code></pre>
<p>If you wish to iterate through lists in this fashion, you can use <code>chain</code> of the <code>itertools</code> module:</p>
<pre><code>from itertools import chain
for x in array.chain.from_iterable(zip(*array)):
pr... | 0 | 2015-04-03T21:02:37Z | [
"python",
"list"
] |
We have a graphical designer, now they want a text based designer. Suggestions? | 263,550 | <p>I'm sorry I could not think of a better title.</p>
<p>The problem is the following:</p>
<p>For our customer we have created (as part of a larger application) a
graphical designer which they can use to build "scenario's".</p>
<p>These scenario's consist of "Composites" which in turn consist
of "Commands". These co... | 4 | 2008-11-04T21:39:36Z | 263,583 | <p>From what i think i've understood you have two options</p>
<p>you could either use an XML style "markup" to let them define entities and their groupings, but that may not be best.</p>
<p>Your alternatives are yes, yoou could embedd a language, but do you really need to, wouldnt that be overkill, and how can you co... | 4 | 2008-11-04T21:47:19Z | [
"c#",
"python",
"scripting",
"parsing",
"embedding"
] |
We have a graphical designer, now they want a text based designer. Suggestions? | 263,550 | <p>I'm sorry I could not think of a better title.</p>
<p>The problem is the following:</p>
<p>For our customer we have created (as part of a larger application) a
graphical designer which they can use to build "scenario's".</p>
<p>These scenario's consist of "Composites" which in turn consist
of "Commands". These co... | 4 | 2008-11-04T21:39:36Z | 263,664 | <p>This looks like a perfect scenario for a simple DSL. See <a href="http://msdn.microsoft.com/en-us/library/bb126235(VS.80).aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/bb126235(VS.80).aspx</a> for some information.</p>
<p>You could also use a scripting language such as lua.Net. </p>
| 2 | 2008-11-04T22:08:12Z | [
"c#",
"python",
"scripting",
"parsing",
"embedding"
] |
We have a graphical designer, now they want a text based designer. Suggestions? | 263,550 | <p>I'm sorry I could not think of a better title.</p>
<p>The problem is the following:</p>
<p>For our customer we have created (as part of a larger application) a
graphical designer which they can use to build "scenario's".</p>
<p>These scenario's consist of "Composites" which in turn consist
of "Commands". These co... | 4 | 2008-11-04T21:39:36Z | 263,675 | <p>If you really just want a dirt simple language, you want a 'recursive descent parser'.</p>
<p>For example, a language like this:</p>
<pre><code>SCENARIO MyScenario
DELAY 1
COUNT 1 ADD 1
DIRECT_POWER 23, False, 150
WAIT 3
...
END_SCENARIO
</code></pre>
<p>You might have a grammar like:</p>
<pre><code>scenario :: ... | 2 | 2008-11-04T22:11:58Z | [
"c#",
"python",
"scripting",
"parsing",
"embedding"
] |
We have a graphical designer, now they want a text based designer. Suggestions? | 263,550 | <p>I'm sorry I could not think of a better title.</p>
<p>The problem is the following:</p>
<p>For our customer we have created (as part of a larger application) a
graphical designer which they can use to build "scenario's".</p>
<p>These scenario's consist of "Composites" which in turn consist
of "Commands". These co... | 4 | 2008-11-04T21:39:36Z | 263,727 | <p>Here's a Pythonic solution for building a DSL that you can use to compile and create byte code arrays.</p>
<ol>
<li><p>Write a simple module that makes your C# structures available to Python. The goal is to define each C# class that users are allowed to work with (Composites or Commands or whatever) as a Python cl... | 1 | 2008-11-04T22:31:45Z | [
"c#",
"python",
"scripting",
"parsing",
"embedding"
] |
We have a graphical designer, now they want a text based designer. Suggestions? | 263,550 | <p>I'm sorry I could not think of a better title.</p>
<p>The problem is the following:</p>
<p>For our customer we have created (as part of a larger application) a
graphical designer which they can use to build "scenario's".</p>
<p>These scenario's consist of "Composites" which in turn consist
of "Commands". These co... | 4 | 2008-11-04T21:39:36Z | 263,742 | <p>To add to S.Lott's comment, here's how you <a href="http://www.redmountainsw.com/wordpress/archives/embedding-ironpython-c-calling-python-script" rel="nofollow">eval a Python script from C# </a></p>
| 1 | 2008-11-04T22:36:41Z | [
"c#",
"python",
"scripting",
"parsing",
"embedding"
] |
We have a graphical designer, now they want a text based designer. Suggestions? | 263,550 | <p>I'm sorry I could not think of a better title.</p>
<p>The problem is the following:</p>
<p>For our customer we have created (as part of a larger application) a
graphical designer which they can use to build "scenario's".</p>
<p>These scenario's consist of "Composites" which in turn consist
of "Commands". These co... | 4 | 2008-11-04T21:39:36Z | 263,931 | <p>While it might be great fun to create this mini-language and code it all up, the real questions you need to ask are:</p>
<ol>
<li>What is the business case for adding this feature / facility?</li>
<li>Who is going to pay for this feature?</li>
<li>Who is going to "sign off" on this feature if you build it?</li>
</o... | 0 | 2008-11-04T23:57:34Z | [
"c#",
"python",
"scripting",
"parsing",
"embedding"
] |
What is a Ruby equivalent for Python's "zip" builtin? | 263,623 | <p>Is there any Ruby equivalent for Python's builtin <code>zip</code> function? If not, what is a concise way of doing the same thing?</p>
<p>A bit of context: this came up when I was trying to find a clean way of doing a check involving two arrays. If I had <code>zip</code>, I could have written something like:</p>
... | 14 | 2008-11-04T21:58:29Z | 263,652 | <p>Ruby has a zip function:</p>
<pre><code>[1,2].zip([3,4]) => [[1,3],[2,4]]
</code></pre>
<p>so your code example is actually:</p>
<pre><code>a.zip(b).all? {|pair| pair[0] === pair[1]}
</code></pre>
<p>or perhaps more succinctly:</p>
<pre><code>a.zip(b).all? {|a,b| a === b }
</code></pre>
| 21 | 2008-11-04T22:05:46Z | [
"python",
"ruby",
"translation"
] |
What is a Ruby equivalent for Python's "zip" builtin? | 263,623 | <p>Is there any Ruby equivalent for Python's builtin <code>zip</code> function? If not, what is a concise way of doing the same thing?</p>
<p>A bit of context: this came up when I was trying to find a clean way of doing a check involving two arrays. If I had <code>zip</code>, I could have written something like:</p>
... | 14 | 2008-11-04T21:58:29Z | 263,670 | <p>Could you not do:</p>
<pre><code>a.eql?(b)
</code></pre>
<p>Edited to add an example:</p>
<pre><code>a = %w[a b c]
b = %w[1 2 3]
c = ['a', 'b', 'c']
a.eql?(b) # => false
a.eql?(c) # => true
a.eql?(c.reverse) # => false
</code></pre>
| 0 | 2008-11-04T22:09:07Z | [
"python",
"ruby",
"translation"
] |
What is a Ruby equivalent for Python's "zip" builtin? | 263,623 | <p>Is there any Ruby equivalent for Python's builtin <code>zip</code> function? If not, what is a concise way of doing the same thing?</p>
<p>A bit of context: this came up when I was trying to find a clean way of doing a check involving two arrays. If I had <code>zip</code>, I could have written something like:</p>
... | 14 | 2008-11-04T21:58:29Z | 266,848 | <p>This is from the ruby spec:</p>
<pre><code>it "returns true if other has the same length and each pair of corresponding elements are eql" do
a = [1, 2, 3, 4]
b = [1, 2, 3, 4]
a.should eql(b)
[].should eql([])
end
</code></pre>
<p>So you should it should work for the example you mentioned.</p>
<p>I... | -2 | 2008-11-05T21:49:58Z | [
"python",
"ruby",
"translation"
] |
How can I ask for root password but perform the action at a later time? | 263,773 | <p>I have a python script that I would like to add a "Shutdown when done" feature to.</p>
<p>I know I can use gksudo (when the user clicks on "shutdown when done") to ask the user for root privileges but how can I use those privileges at a later time (when the script is actually finished).</p>
<p>I have thought about... | 7 | 2008-11-04T22:47:39Z | 263,804 | <p>gksudo should have a timeout, I believe it's from the time you last executed a gksudo command.</p>
<p>So I think I'd just throw out a "gksudo echo meh" or something every minute. Should reset the timer and keep you active until you reboot.</p>
| 3 | 2008-11-04T23:02:05Z | [
"python",
"linux",
"ubuntu"
] |
How can I ask for root password but perform the action at a later time? | 263,773 | <p>I have a python script that I would like to add a "Shutdown when done" feature to.</p>
<p>I know I can use gksudo (when the user clicks on "shutdown when done") to ask the user for root privileges but how can I use those privileges at a later time (when the script is actually finished).</p>
<p>I have thought about... | 7 | 2008-11-04T22:47:39Z | 263,851 | <p>Escalate priority, spawn (<code>fork (2)</code>) a separate process that will <code>wait (2)</code>, and drop priority in the main process.</p>
| 1 | 2008-11-04T23:18:05Z | [
"python",
"linux",
"ubuntu"
] |
How can I ask for root password but perform the action at a later time? | 263,773 | <p>I have a python script that I would like to add a "Shutdown when done" feature to.</p>
<p>I know I can use gksudo (when the user clicks on "shutdown when done") to ask the user for root privileges but how can I use those privileges at a later time (when the script is actually finished).</p>
<p>I have thought about... | 7 | 2008-11-04T22:47:39Z | 263,859 | <p>Instead of <code>chmod u+s</code>ing the shutdown command, allowing passwordless sudo access to that command would be better..</p>
<p>As for allowing shutdown at the end of the script, I suppose you could run the entire script with sudo, then drop privileges to the initial user at the start of the script?</p>
| 4 | 2008-11-04T23:21:50Z | [
"python",
"linux",
"ubuntu"
] |
launching vs2008 build from python | 263,820 | <p>The first batch file launches a command prompt, i need the second command to be in the ccontext of the first. how can I do this in python?</p>
<p>As is, it launches the batch, and blocks until the batch (with its command prompt context) terminates, and then executes <code>devenv</code> without the necessary contex... | 1 | 2008-11-04T23:08:03Z | 263,856 | <p>You could append the devenv command onto the end of the original batch file like so:</p>
<pre><code>'%comspec% /k "...vcvarsall.bat" x86 && devenv asdf.sln /rebuild ...'
</code></pre>
<p>(obviously I have shortened the commands for simplicity's sake)</p>
| 2 | 2008-11-04T23:21:24Z | [
"python",
"windows",
"visual-studio-2008",
"build-automation"
] |
launching vs2008 build from python | 263,820 | <p>The first batch file launches a command prompt, i need the second command to be in the ccontext of the first. how can I do this in python?</p>
<p>As is, it launches the batch, and blocks until the batch (with its command prompt context) terminates, and then executes <code>devenv</code> without the necessary contex... | 1 | 2008-11-04T23:08:03Z | 263,881 | <p>I these situations I use script that does it all. That way you can chain as much as you want. Sometimes I will generate the script on the fly.</p>
<pre><code>compileit.cmd
call C:\Program Files\Microsoft Visual Studio 9.0\VC\vcvarsall.bat
devenv $1.sln /rebuild Debug /Out last-build.txt
</code></pre>
| 2 | 2008-11-04T23:29:38Z | [
"python",
"windows",
"visual-studio-2008",
"build-automation"
] |
launching vs2008 build from python | 263,820 | <p>The first batch file launches a command prompt, i need the second command to be in the ccontext of the first. how can I do this in python?</p>
<p>As is, it launches the batch, and blocks until the batch (with its command prompt context) terminates, and then executes <code>devenv</code> without the necessary contex... | 1 | 2008-11-04T23:08:03Z | 288,734 | <p>I run my Python script from a batch file that sets the variables :-)</p>
<pre><code>call ...\vcvarsall.bat
c:\python26\python.exe myscript.py
</code></pre>
<p>But Brett's solution sounds better.</p>
| 2 | 2008-11-13T23:24:48Z | [
"python",
"windows",
"visual-studio-2008",
"build-automation"
] |
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