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Google App Engine Guestbook application gives error
Question: I upload the Google App Engine application which is at the url
developers.google.com/appengine/docs/python/memcache/usingmemcache#Memcache
When I run the application on Google App Engine Launcher, it runs but the
website shows: (First error is there us no P... |
Mutable objects in python and constants
Question: I have a class which contains data as attributes and which has a method to
return a tuple containing these attributes:
class myclass(object):
def __init__(self,a,b,c):
self.a = a
self.b = b
self.c = c
... |
parsing MySQL database with python MySQLdb to extract hashtags
Question: I have tweets scraped in MySQL database and I manage to connect to it and
query for column that contains tweets' text. Now what I want to do is parse
this and extract hashtags into a csv file.
So far, I have this code that is working until the la... |
Importing module from relative path
Question: I'm looking for some advice on a python issue I am having. I am a novice at
python. I believe that I am relying on my programming experience from other
languages to make this work and I have finally come to a stand-still. Here is
the scenario, I am importing a module that r... |
Pass a file as a parameter in two Python Scripts
Question: New Python'er has a question _"hand raised"_.
I have two Python Scripts and a XML file. "mysecondpython.py" needs to call
"myfirstpython.py" with a parameter of "data.xml" so that it can write
something in, which then returns a file.
From command-line, I shou... |
Matplotlib + Ubuntu + GTK3 no plot shown
Question: I can see the GUI but not the plot. No errors, even the mouse coordinates are
okay, but no plot using
import matplotlib.pyplot as plt
plt.plot([1,2,3,4])
plt.ylabel('some numbers')
plt.show()
Then
$ python -c 'import matp... |
parsing JSON which contains "objects"
Question: I'm getting data from an application that returns what seems to be an JSON,
but with some "objects". For instance:
{"rgEvtData":[new VisData(0,0,1,0,1,0,0,0,0,-1),new VisData(0,1,1,1,1,0,0,0,0,-1),new VisData(0,2,1,2,1,0,0,0,0,-1),new VisData(0,3,2,0,1,0,0,... |
randomly choose from list using random.randint in python
Question: How to use `random.randint()` to select random names given in a list in
python.
I want to print 5 names from that list. Actually i know how to use
`random.randint()` for numbers. but i don't know how to select random names
from a given list.
we are no... |
Python: Get Twitter Trends in tweepy, and parse JSON
Question: _Ok, so please note this is my first post_
So, I am trying to use Python to get Twitter Trends, I am using python 2.7 and
Tweepy.
I would like something like this (which works):
#!/usr/bin/python
# -*- coding: utf-8 -*-
import tweep... |
Calculating mean of sample in monte carlo simulation
Question: I did a Monte Carlo simulation of n samples. For each sample i, I need to
calculate the value Xi so probably, the results that I will obtain is:
> X = [X1, X2, ..., Xn]
(Here Xi can be a matrix or number).
Now I want to calculate the mean of theses sampl... |
Drawing tangent plot in Python (matplotlib)
Question: Today I decided to write simple program in Python, just to practice before
exam. Firstly, I wanted to draw sin and cos plot, which wasn't so hard. But
then, I decided to challenge myself and draw tangent plot.
import pylab as p
x= p.arange(-1... |
Python-social, Django-nonrel, and GAE fighting over files, python-tk
Question: I'm trying to host a Django app on Google App Engine, so I'm using [Django
nonrel](https://github.com/django-nonrel/django) and following [these
instructions](http://www.allbuttonspressed.com/projects/djangoappengine). Now,
trying to get [Py... |
Validating SAML signature in python
Question: I need to implement authentication in python from a 3rd party by using SAML2.
I have looked into [pysaml2](https://pypi.python.org/pypi/pysaml2/1.1.0) and
found that to be quite confusing, and decided to give
[M2Crypto](https://pypi.python.org/pypi/M2Crypto) a chance after ... |
How to remove trailing `\r` in shell?
Question: I have a file that looks like this:
1 0.1951 0.1766 0.1943 0.1488
0.1594 0.2486 0.2044 0.2013 0.1859
0.1559 0.1761 0.1666 0.1737 0.1595
0.1940 1 0.2398 0.1894 0.1532
0.1749 0.2397 1 0.1654 0.1622
0.1940 ... |
How to generate HTML color diff from git using python
Question: So I figured out creating HTML git diff i can embed in email but don't know
why is it all being spit in one line ?
here is how I did it!!
import sys
import subprocess
import os
from ansi2html.converter import Ansi2HTMLConve... |
Calculate the greatest distance between any two strings in a group, using Python
Question: My question is how to calculate greatest distance between any two strings that
correspond to a certain group. Each line in my file starts with a 'group
number' followed by a long string. I want to know, for each group, what the
g... |
Python - step through list -TypeError: 'int' object is not iterable
Question: Trying to learn python, I am trying to do:
list0=['A','B'];
list1=['C','D'];
z=0
while z < 2:
for q in list(z):
print q
z += 1
I would like it to print
A
B
C
... |
Error while installing Fabric on OSX using recommended pip. Xcode is latest version
Question: I just tried to install Fabric on my Mac, and I was thrown this error after
using `pip install fabric`
Installing collected packages: fabric, paramiko, pycrypto, ecdsa
Cleaning up...
Exception:
Trace... |
Flask - run function every hour
Question: I have a Flask web hosting with no access to `cron` command. How can I execute
some Python function every hour?
Answer: You could make use of [`APScheduler`](http://pythonhosted.org/APScheduler/) in
your Flask application and run your jobs via its interface:
im... |
Python. Is it possible to print without using the print function?
Question: I wondered whether it is possible to print (for example a string) in python
without the print command. This can be done by a command or by some trick.
For example, in C there are printf and puts.
Can someone show me a way to print or to deny ... |
Left factoring using Python
Question: Is there any predefined function in Python to identify the common prefixes on
the right side of a production rule?
For example, I need to turn this sort of data structure:
['abc', 'ab', 'd', 'dc']
into a dictionary of prefix-to-corresponding suffixes pairs. So... |
reading data from stackoverflow rest api
Question: Playing around with the raspberry pi and python. so bear with me :)
When trying to decode the response data from the stackoverflow api I keep on
receiving the error `utf-8 codec can't decode byte 0x8b in position 1: invalid
start byte`
Here is the entire code that I ... |
Virtualenv doesn't install pip
Question: I have installed `python3` via homebrew, updated `pip` & `setuptools`,
installed `virtualenv` via `pip`. Now I'm trying to create a virtual env.
Unfortunately, I can't get it to add pip to the virtualenv. Basically:
$ ls -lha venv/bin/
total 80
drwxr-xr-x ... |
Python - alternating lists
Question: I have two lists in python:
l = [1,1,1,1,1,1]
b = ['-', 2, 2, 2, '-', 2]
In the end, I'd like to have a list like this:
result = [1, 1, 2, 1, 2, 1, 2, 1, 1, 2]
Algorithm: If there is a '-' in b, do nothing, else append element from b
after element in l at ... |
Python alternative to fscanf C code
Question: I have some C code that works well:
#include<stdio.h>
#include<stdlib.h>
int main()
{
FILE *fp;
struct emp
{
char name[40];
int age;
float bs;
};
struct emp e;
fp=... |
Examples given in the Python BeautifulSoup 4 Documentation
Question: I am learning the BeautifulSoup 4 Documentation, and want to exercise the
examples given.
I am trying the examples however it’s not successful. An example below.
Seems I am not putting it in a right way, and problem lies in the ‘url’. Could
some kin... |
Bottle Displays Old Template?
Question: I made a first draft of a template, called `batch.tpl`. I have updated it,
however, the old template still displays. I have shut off the controller
script and turned it back on multiple times. I have removed everything from
the template except for the following:
`cat views/batch... |
Writing and reading variables in a file in Python
Question: I am new to the Python language and I am scratching my head on how to make my
code create a file where it can define variables and then later read the
variables so they are useable in my code. How would I do this?
Thanks, Chandler.
Answer: [You can use the ... |
Python dicerolling program skipping the roll
Question: I have been trying to create a program that will simulate a dice roll, with
the option to choose between a 4, 6, or 12 sided die. At the moment the
problem I am having is that the program skips the rolling entirely no matter
what option I choose and immediately ask... |
Sending string via socket (python)
Question: I have two scripts, Server.py and Client.py. I have two objectives in mind:
1. To be able to send data again and again to server from client.
2. To be able to send data from Server to client.
here is my Server.py :
import socket
serversocket =... |
LoginUser API access from Python
Question: Is there a way to call the following method from Python?
<http://msdn.microsoft.com/en-
us/library/windows/desktop/aa378184(v=vs.85).aspx>
Any help would be greatly appreciated.
Answer: You may use [ctypes](http://docs.python.org/2/library/ctypes.html). This
example seems ... |
Wrap derived template class with Boost::python
Question: I have a derived class from a template class :
template<typename X, typename Y>
class BaseFunction
{
static void export_BaseFunction()
{
?????
};
};
class Function : public BaseFunction<pair<doubl... |
Using 'exec' function to run script in the interpreter shell
Question: I try to run a script in Python3 by exec() function.
I'm studying Python with the book 'Learning Python', O'Reilly 5th Edition. In
the "CHAPTER 2 How Python Runs Programs" there is a method to like this:
>>> exec(open('script1.py').r... |
Is there a way to implement **kwargs behavior when calling a Python script from the command line
Question: Say I have a function as follows:
def foo(**kwargs):
print kwargs
And then call the function like this, I get this handy little dict of all
`kwargs`.
>>> foo(a = 5, b = ... |
Django NoReverseMatch
Question: I'm making a simple login app in django 1.6 (and python 2.7) and I get an
error at the beggining that is not letting me continue.
This is the site's url.py
from django.conf.urls import patterns, include, url
from django.contrib import admin
import login
a... |
Passing values to array indexes in Python
Question: Is there any way to assign values to keys in array in Python?
Example in PHP:
$inputArr = array(
'vertex'=>values[0],
'visited'=>values[1],
'letter' => $values[2]
)
T... |
UWSGI timer and cron decorators running duplicate jobs
Question: I have been trying to make the uwsgi python spooler work properly for quite
some time. I have a setup in which I run a django application with two worker
processes. I have tried setting a cron spooler (and a timer spooler) to run a
task every ten minutes,... |
Cython with python 3.3
Question: I have been using python 3.3
This is an old problem as I searched, and this is what I did:
helloworld.pyx
print("Hello world!")
Then, in ipython, I did:
import pyximport; pyximport.install()
import helloworld
It says:
> ImportError: Build... |
Why can't node handle this regex but python can?
Question: I have a large text file that I am extracting URLs from. If I run:
import re
with open ('file.in', 'r') as fh:
for match in re.findall(r'http://matchthis\.com', fh.read()):
print match
it runs in a second or so use... |
Unable to import PIL.Image for qrcode
Question: I run into this weird error, I need to use `qrcode` with `pillow`, so I did
`pip install pillow qrcode` (after initiating the virtual environment). Then,
the following thing happens
>>> from PIL import Image
>>> Image
<module 'PIL.Image' from '/vagr... |
Django + Boto + Python 3
Question: How can I store my Django uploaded files on S3 using Python 3 on EC2 Amazon
Linux? If I can't, how can I share uploaded files between 2 EC2 instances if
I'm using ELB?
I tried to use the django-storages-py3 + boto#py3kport but it doesn't work,
when I'm trying to upload files I get an... |
How to get the field value and assign to the variable in python
Question: I am using **openerp 6**.My `form` contains one `text box` and I need to get
that value and assign it to a variable so to perform calculations and to
return a result to store in a new `textbox`...
Answer: I have give .py file here. This will ca... |
shapely and geos break in distance method
Question: I'm having problems using the distance method in shapely (I suspect
incompatibility with the geos package).
The following code:
from shapely.geometry import Point
print Point(0,0).distance(Point(1,1))
creates the following error:
... |
Python- How to check if program gets aborted by user while running?
Question: If I am running a python program on linux terminal and i abort it manually by
pressing ctrl+c, how can i make my program do something when this event
occurs.
something like:
if sys.exit():
print "you chose to end the p... |
Struggling to append a relative path to my sys.path
Question: So there are a lot of pretty similar questions but none of the answers seems
to satisfy what I'm looking for.
Essentially I am running a python script using an absolute directory in the
command line.
Within this file itself, I want to import a module/file... |
subprocess.Popen("ssh host@remote cmd") failed
Question: I'm new to python subprocess. When I want to use python
subprocess.Popen.communicate to accomplish interact passwd with shell cmd "net
ads join -U administrator", it's output didn't redirect into PIPE, but in
stdout.My code is under:
import subproc... |
Splitting string and removing whitespace Python
Question: I would like to split a String by comma `','` and remove whitespace from the
beginning and end of each split.
For example, if I have the string:
`"QVOD, Baidu Player"`
I would like to split and strip to:
`['QVOD', 'Baidu Player']`
Is there an elegant way of... |
Changing Microsoft Query in Excel with Python (pywin32) or VBA
Question: I need to create reports for the financial year of the individual sales of
each customer (around 500) from 1-Apr 2014 to 31-Mar 2015. Last year when I
did this I went in to each report from the previous year and simply changed
the date in the quer... |
python list generation/saving bug
Question: I am trying to make program that prints all the possible combinations for `a`
to `zzz`. I tried to add a save state feature, and it works fine but there is
this bug.
Let's say I interrupted the program when it printed something like `e`. When I
execute the program again, it ... |
Make python process stop/wait/sleep for 0.2 seconds [Works]
Question: Title says it all, is it possible to make python sleep for less than a second?
WORKS:
import time
print ("foo")
time.sleep(0.2) #talking about the value of the time
print ("bar")
If not, then is there any other way? T... |
python scientific notation with forced leading zero
Question: I want to have Python2.7 print out floating point numbers in scientific
notation, forced to start with 0. For instance, assume
a=1234567890e12
print '{:22.16E}'.format(a)
1.2345678900000000E+21
However, I want a print output that... |
Making Python 2.7 code run with Python 2.6
Question: I have this simply python function that can extract a zip file (platform
independent)
def unzip(source, target):
with zipfile.ZipFile(source , "r") as z:
z.extractall(target)
print "Extracted : " + source + " to: " + target... |
adding lines to a file in it doesnt exist in python
Question: so what i am doing is first reading the /var/log/secure file for ipaddresses
that i want to block and saving that list to a file. then i am trying read
that file and determine if the address is outside of the US, and if it is,
then i want to block the addres... |
how to turn a sorted list into tab delimited values in Python?
Question: I have a sorted list that looks like this [('100','abc'),('99','bca')]. I want
to turn this into something like this into a text file.
abc 100<br>
bca 99
I have tried this
import csv
writer = c... |
Does nitrous.io support the endpoint library?
Question: Developing a python project on the platform and attempting [appengine
endpoints](https://developers.google.com/appengine/docs/python/endpoints/getstarted/backend/write_api).
`import endpoints` throws `google.appengine.api.yaml_errors.EventError: the
library "endp... |
Installing LightBlue (BlueTooth) for Python
Question: I'm trying to import lightblue for Python. I have a brand new Mac (so 10.9 I
believe), I have Xcode installed, and I am running...
Python 2.7.6 :: Anaconda 1.8.0 (x86_64)
I downloaded lightblue-0.4.tar.gz to my desktop and then ran
... |
Count how many matrices have full rank for all submatrices
Question: I would like to count how many m by n matrices whose elements are 1 or -1 have
the property that all its `floor(m/2)+1 by n` submatrices have full rank. My
current method is naive and slow and is in the following python/numpy code. It
simply iterates ... |
Celery import error
Question: I am hitting an import error in starting celery. This is confusing, because
this was working a few days ago, and git shows nothing changed. I think
celery's heuristics for import directories are colliding with my split-out
setting structure, and maybe my path/env is different than it was w... |
Bottle framework: how to return datetime in JSON response
Question: When I try to return JSON containing `datetime` value, I'm getting
File "/usr/lib/python2.7/json/encoder.py", line 178, in default
raise TypeError(repr(o) + " is not JSON serializable")
TypeError: datetime.datetime(2014, 2,... |
How to take sum and average of indexed values in a list?
Question: List B is expanded at index positions where list A has adjacent matching
values using [groupby](http://docs.python.org/2/library/itertools.html)
A = [476, 1440, 3060, 3060, 500,500]
B = [0,4,10,15]
so resultant list is:
... |
creating surface data for axes3d
Question: Okay, apologies for this question but I'm pulling my hair out here.
I have a data structure loaded in python in the form:
[(1,0,#),(1,1,#),(1,2,#),(1,3,#),(2,0,#),(2,1,#) ... (26,3,#)]
with # being a different number each time that I wish to represent on ... |
Find the most recent file on a http server (python)
Question: I have a site: <http://planet.osm.ch/replication/hour/000/006/> and I need to
get the most recent file listed on the server. How can I accomplish this
through python 2.6.x and using only the standard library.
Thank you
Edit:
When I mean the most recent, I... |
How to share a string amongst multiple processes using Managers() in Python?
Question: I need to read strings written by multiprocessing.Process instances from the
main process. I already use Managers and queues to pass arguments to
processes, so using the Managers seems obvious, [but Managers do not support
strings](h... |
python error when added a function to a class
Question: i just added this function to my class
def getTotalPopulation():
print 'there are {0} people in the world'.format(Person.population)
when i call it, i got this error:
Traceback (most recent call last):
File "<i... |
How to find set of most frequently occurring word-pairs in a file using python?
Question: I have a data set as follows:
"485","AlterNet","Statistics","Estimation","Narnia","Two and half men"
"717","I like Sheen", "Narnia", "Statistics", "Estimation"
"633","MachineLearning","AI","I like Cars, but ... |
Strategies for searching through strings in python?
Question: What are efficient ways to search for substrings in strings? \- Are there
specific functions built in python we can use? \- Can we convert them to lists
then access elements in the list? \- Can we use for loops to search through
individual elements? \- Is th... |
Can not start boa-constructor successfully
Question: When I start boa-constructor from the command line by starting the script
"Boa.py", I got the message says "
D:\Python27\Lib\site-packages\boa-constructor>python Boa.py
Starting Boa Constructor v0.6.1
importing wxPython
reading user prefere... |
Requiring help in figuring out indent error in python code
Question: I get an indentation error when trying to run the code below. I am trying to
print out the URLs of a set of html pages recursively.
import urllib2
from BeautifulSoup import *
from urlparse import urljoin
# Create a list of w... |
How to delete an image file from GridFS by file metadata?
Question: I have an image with the following metadata:
> db.fs.files.find().pretty()
{
"_id" : ObjectId("4576874577342672346"),
"chunkSize" : 262144,
"user_name" : "my name",
"filename" : "image.jpg",
"l... |
Type error when calling sdlttf.TTF_OpenFont() with the pysdl2 Python bindings
Question: I have all dependencies correctly installed (SDL2, SDL2_TTF, pysdl2). I've
tried to provide just the filename for the font and I've tried to hard code
the full path. The font is in the same directory as the python file.
... |
Modifying Active Directory Passwords via ldapmodify
Question: I'm investigating the scripting of various LDAP operations. However, I've hit
a bit of a speed bump with Active Directory user creation.
The following LDIF fails when I load it in via the `ldapmodify` command:
dn: CN=Frank,CN=Users,DC=domain,... |
variable in try clause not accessible in finally clause - python
Question: I am new to python, so sorry if this question is dumb, but can someone tell me
what's going on here.
When I run the following code with no errors in the mdb.connect() call, the
code runs fine.
But when I purposely insert an error (for example,... |
Keyword values for error_kw in Python bar plots
Question: I want to adjust error bar properties in a bar plot. Apparently this is to be
done by using keyword arguments (i.e. in error_kw). e.g.
from pylab import *
fig = figure()
ax = fig.add_subplot(111)
ax.plot( left=0, width=1, he... |
How do I right click on a windows tray icon and clicking on item on context menu in Python?
Question: I need to right click on a Windows Notification Tray icon, and select (left
clicking) one of the items on the resulting context menu.
I have tried to use [pywinauto](http://pywinauto.googlecode.com/), and while
runnin... |
Python - create next file
Question: I am writing a small script. The script creates `.txt` files. I do not want to
replace existing files. So what I want python to do is to check if the file
already exists. If it does not it can proceed. If the file does exists I would
like python to increment the name and than check a... |
15 Python scripts into one executable?
Question: Ive been tinkering around all day with solutions from here and here:
[How would I combine multiple .py files into one .exe with
Py2Exe](http://stackoverflow.com/questions/7950335/how-would-i-combine-
multiple-py-files-into-one-exe-with-py2exe)
[Packaging multiple scrip... |
Bitcoinrpc connection to remote server
Question: Hey I was wondering if anyone knew how to connect to a bitcoin wallet located
on another server with bitcoinrpc
I am running a web program made in django and using a python library called
bitcoinrpc to make connections.
When testing locally, I can use bitcoinrpc.connec... |
SKLearn - Principal Component Analysis leads to horrible results in knn predictions
Question: by adding PCA to the algorithm, I'm working to improve %96.5 SKlearn kNN
prediction score for kaggle digit recognition tutorial, yet new kNN
predictions based on PCA output are horrible like 23%.
below is the full code and i ... |
Tracking CPU time of Python process and children
Question: Is there an easy way to track the CPU time of not only a Process but of any
child processes launched by it?
I tried sub-classing `multiprocessing.Process` to time an arbitrary function,
like:
import time
from multiprocessing import Process
... |
Split .TIF file using PIL
Question: I took a look at the [Split multi-page tiff with
python](http://stackoverflow.com/questions/9627652/split-multi-page-tiff-with-
python) file for Splitting a .TIFF File, however to be honest, I didn't fully
understand the answers, and I'm hoping for a little clarification.
I am attem... |
Python Kerberos-1.1.1.tar.gz Install Failure on Windows
Question: I run Python on windows based environments (2003, win 7, 2008 r2, etc) both 32
and 64-bit flavors. I've recently had to authenticate to various corporate,
internally facing web-sites using both NTLM and Kerberos authentication
schemes.
I was successful ... |
How python custom class differ from any other in-built object like list?
Question: I m not sure my question title is correct but :
My problem is :
When I created a new class called **classA** and i did **deepcopy** to another
name called **classB** and did **equality and identity test** :
Here is my first snippet: C... |
Stuck at os.rename can't quite figure out how to tie it in with the rest of my script
Question: I am new to programming and python and this is my first program I decided to
try and tackle.
This loops through my files in the directory that I run it from and takes out
the string of text I don't want and leaves me with t... |
connect to telnet in python with a quizz as login?
Question: I need to connect to a remote server via telnet. To authenticate to the server
I have to answer like a 100 questions. So I tried to automate this task in
python using telnetlib but the prompt halts without returning any message.
here is what I did
... |
Sending an HTML rich email using python
Question: I am trying to send HTML rich email, so far the code is working but the colour
formatting i had in html message content is not showing when I check in my
mailbox i sent to.
So far here is the code :
from email.MIMEMultipart import MIMEMultipart
from ... |
HTTP Server Python: how to test it in local?
Question: I have 2 networks on my computer (Wifi network for internet, and local network
based on wired cable) with specific mask and IP (this configuration works).
I have a Python HTTP server (on my computer) for the local network:
or simply
>>> python serv... |
Why running a same script in different location cause errors?
Question: I try to run a script that's using third party module (completely install by
`pip install module`) in Ubuntu 13.10. This script located in NTFS partition.
import foo
API_KEY = "xxx"
api = foo.FOO(APIKEY)
and it's r... |
Python couldn't insert row to MySQL
Question: I'm trying to accomplish following query:
sql = "INSERT INTO adr_citydistricts (CityDistrict, CityDistrictRU) VALUES (% (ua) s,% (ru) s);"
data = {'ua': 'ukrainian', 'ru': 'russian'}
cursor.execute (sql, data)
After executing this query, there i... |
convert list into random list within list python
Question: Let us imagine that in python we have list of numbers, like this:
[1, 3, 4, 5, 6, 7, 8, 9]
What is the simplest possible way to convert this list of numbers into a
random series of lists within lists?
Like this:
[[1, 2, 3], ... |
multiprocessing.Queue deadlocks after "reader" process death
Question: I've been playing with multiprocessing package and noticed that queue can be
deadlocked for reading when:
1. The "reader" process is using [get](http://docs.python.org/2/library/multiprocessing.html#multiprocessing.Queue.get) with _timeout_ > 0:
... |
how to work with time.strftime in django 1.6
Question: I am one of the new user in django 1.6 but one thing very bad I have noticed
in this version of django is that time.strftime("%H:%M:%S") does not working
and giving a wrong time in my view . Is there any alternating approach for
getting a right time in django view ... |
Python findAll not working on beautifulsoup 3
Question: I am trying to parse a html file and write the results to a csv file. The html
file is:
<table BORDER='1' CELLSPACING='0' CELLPADDING='0'>
<tr>
<td><small>15</small></td >
<td><small><small>Cat</small></small></td>
</tr>
... |
Python 2.6 ImportError: No module named argparse
Question: I'm trying to run git-cola from Red Hat Enterprise Linux Server release 6.5
and receive:
Traceback (most recent call last):
File "....../bin/git-cola", line 24, in <module>
from argparse import ArgumentParser
ImportError: No module na... |
How do I import a text file with no separators in python, using numpy?
Question: How do I import a file with no separators?
I have a file named `text.txt` which contains 2 lines of text:
> 00000000011100000000000000000000
> 00000000011111110000000000000000
When I use
> f = open("text.txt")
> data = np.loadtxt... |
No module named _graphviz
Question: I installed graphviz and pygraphviz, when I open a cmd and type
python
import _graphviz
_graphviz can be imported, but when I run a C++ program which will invoke a
.py file, there is a line in this .py file which is
import pygraphviz as pgv
... |
feature_importances_ showing up as NoneType in ExtraTreesClassifier :TypeError: 'NoneType' object is not iterable
Question: I am trying to select important features (or at least understand which
features explain more variabilty) for a given dataset. Towards this I use both
ExtraTreesClassifier and GradientBoostingRegre... |
path.py not recognized in eclipse
Question: I installed the path package:
easy_install path.py
running ipython I can validly run:
from path import path
Eclipse (after restart) does not recognize this (unresolved import "path"). It
also will not auto-complete class members and f... |
Using Flask-Mail asynchronously results in "RuntimeError: working outside of application context"
Question: I am trying to send some mail asynchronously (based on the code in [The Flask
Mega-Tutorial, Part XI: Email
Support](http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-xi-
email-support)). However, ... |
Is there an NSCoding-like facility in Python?
Question: As an iOS developer recently experimenting with Python, I'm curious to know if
there's something like `NSCoding` that would allow me to implement a method or
a pair of methods which would define how my objects can be automatically saved
to disk, much like `NSCodin... |
Searching for equivalent of FileNotFoundError in Python 2
Question: I created a class named Options. It works fine but not not with Python 2. And
I want it to work on both Python 2 and 3. The problem is identified:
FileNotFoundError doesn t exist in Python 2. But if I use IOError it doesn t
work in Python 3
Changed in... |
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