code stringlengths 63 8.54k | code_length int64 11 747 |
|---|---|
# Write a Python program to extract numbers from a given string.
def test(str1):
result = [int(str1) for str1 in str1.split() if str1.isdigit()]
return result
str1 = "red 12 black 45 green"
print("Original string:", str1)
print("Extract numbers from the said string:")
print(test(str1))
| 42 |
# Write a Pandas program to filter rows based on row numbers ended with 0, like 0, 10, 20, 30 from world alcohol consumption dataset.
import pandas as pd
# World alcohol consumption data
w_a_con = pd.read_csv('world_alcohol.csv')
print("World alcohol consumption sample data:")
print(w_a_con.head())
print("\nFilter r... | 59 |
# Write a Python program to extract characters from various text files and puts them into a list.
import glob
char_list = []
files_list = glob.glob("*.txt")
for file_elem in files_list:
with open(file_elem, "r") as f:
char_list.append(f.read())
print(char_list)
| 37 |
# Write a NumPy program to extract second and fourth elements of the second and fourth rows from a given (4x4) array.
import numpy as np
arra_data = np.arange(0,16).reshape((4, 4))
print("Original array:")
print(arra_data)
print("\nExtracted data: Second and fourth elements of the second and fourth rows ")
print(arr... | 48 |
# Write a Pandas program to split a given dataset, group by one column and remove those groups if all the values of a specific columns are not available.
import pandas as pd
pd.set_option('display.max_rows', None)
pd.set_option('display.max_columns', None)
df = pd.DataFrame({
'school_code': ['s001','s002','s003'... | 116 |
# Write a Python Code for time Complexity plot of Heap Sort
# Python Code for Implementation and running time Algorithm
# Complexity plot of Heap Sort
# by Ashok Kajal
# This python code intends to implement Heap Sort Algorithm
# Plots its time Complexity on list of different sizes
# ---------------------Important ... | 332 |
# Write a Python Program to Replace Text in a File
# Python program to replace text in a file
s = input("Enter text to replace the existing contents:")
f = open("file.txt", "r+")
# file.txt is an example here,
# it should be replaced with the file name
# r+ mode opens the file in read and write mode
f.truncate(0)
f... | 65 |
# Write a Pandas program to count the number of missing values of a specified column in a given DataFrame.
import pandas as pd
import numpy as np
pd.set_option('display.max_rows', None)
#pd.set_option('display.max_columns', None)
df = pd.DataFrame({
'ord_no':[70001,np.nan,70002,70004,np.nan,70005,np.nan,70010,70003,... | 57 |
# Write a Python program to add two given lists of different lengths, start from left , using itertools module.
from itertools import zip_longest
def elementswise_left_join(l1, l2):
result = [a + b for a,b in zip_longest(l1, l2, fillvalue=0)][::1]
return result
nums1 = [2, 4, 7, 0, 5, 8]
nums2 = [3, 3, -1,... | 91 |
# Python Program to Determine all Pythagorean Triplets in the Range
limit=int(input("Enter upper limit:"))
c=0
m=2
while(c<limit):
for n in range(1,m+1):
a=m*m-n*n
b=2*m*n
c=m*m+n*n
if(c>limit):
break
if(a==0 or b==0 or c==0):
break
print(a,b... | 34 |
# Write a Python program to make a chain of function decorators (bold, italic, underline etc.) in Python.
def make_bold(fn):
def wrapped():
return "<b>" + fn() + "</b>"
return wrapped
def make_italic(fn):
def wrapped():
return "<i>" + fn() + "</i>"
return wrapped
def make_underline(... | 67 |
# You are required to write a program to sort the (name, age, height) tuples by ascending order where name is string, age and height are numbers. The tuples are input by console. The sort criteria is:
1: Sort based on name;
2: Then sort based on age;
3: Then sort by score.
The priority is that name > age > score.
If th... | 124 |
# Find sum and average of List in Python
# Python program to find the sum
# and average of the list
L = [4, 5, 1, 2, 9, 7, 10, 8]
# variable to store the sum of
# the list
count = 0
# Finding the sum
for i in L:
count += i
# divide the total elements by
# number of elements
avg = count/len(L)
... | 77 |
# Create a dataframe of ten rows, four columns with random values. Write a Pandas program to highlight the entire row in Yellow where a specific column value is greater than 0.5.
import pandas as pd
import numpy as np
np.random.seed(24)
df = pd.DataFrame({'A': np.linspace(1, 10, 10)})
df = pd.concat([df, pd.DataFram... | 76 |
# Program to Find the nth Palindrome Number
rangenumber=int(input("Enter a Nth Number:"))
c = 0
letest = 0
num = 1
while c != rangenumber:
num2=0
num1 = num
while num1 != 0:
rem = num1 % 10
num1 //= 10
num2 = num2 * 10 + rem
if num==num2:
c+=1
letest = num
... | 64 |
# Write a Python program to get the difference between two given lists, after applying the provided function to each list element of both.
def difference_by(a, b, fn):
_b = set(map(fn, b))
return [item for item in a if fn(item) not in _b]
from math import floor
print(difference_by([2.1, 1.2], [2.3, 3.4], floor))... | 68 |
# numpy.sqrt() in Python
# Python program explaining
# numpy.sqrt() method
# importing numpy
import numpy as geek
# applying sqrt() method on integer numbers
arr1 = geek.sqrt([1, 4, 9, 16])
arr2 = geek.sqrt([6, 10, 18])
print("square-root of an array1 : ", arr1)
print("square-root of an array2 : ", arr2... | 50 |
# Write a NumPy program to get the number of items, array dimensions, number of array dimensions and the memory size of each element of a given array.
import numpy as np
array_nums = np.array([[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]])
print("Original array:")
print(array_nums)
print("\nNumber of items of the sai... | 75 |
# Write a Python program to convert an array to an array of machine values and return the bytes representation.
from array import *
print("Bytes to String: ")
x = array('b', [119, 51, 114, 101, 115, 111, 117, 114, 99, 101])
s = x.tobytes()
print(s)
| 45 |
# Write a Python program to add two given lists of different lengths, start from left.
def elementswise_left_join(l1, l2):
f_len = len(l1)-(len(l2) - 1)
for i in range(0, len(l2), 1):
if f_len - i >= len(l1):
break
else:
l1[i] = l1[i] + l2[i]
return l1
nums1 = [2,... | 94 |
# Write a Python program to remove duplicates from a list.
a = [10,20,30,20,10,50,60,40,80,50,40]
dup_items = set()
uniq_items = []
for x in a:
if x not in dup_items:
uniq_items.append(x)
dup_items.add(x)
print(dup_items)
| 32 |
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