Posts Tagged with 'Python'

Python | Check the memory usage of  an object >>> import sys >>> x = 100 >>> print(sys.getsizeof(x)) 28  

Last updated 1 year, 3 months ago | 500 views

Tags:- Python

Python | Print String N times >>> s = 'Python' >>> n = 5 >>> print(s * n) PythonPythonPythonPythonPython  

Last updated 1 year, 3 months ago | 469 views

Tags:- Python Django

Python | Return multiple values from functions >>> def A(): return 2, 3, 4 >>> a, b, c = A() >>> print(a, b, c) 2 3 4  

Last updated 1 year, 3 months ago | 381 views

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Python | Join all items of a list to convert into a single string >>> x = ["Python", "Online", "Training"] >>> print(" ".join(x)) Python Online Training  

Last updated 1 year, 3 months ago | 351 views

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Python | Reversing a String >>> x = 'PythonWorld' >>> print(x[: : -1]) dlroWnohtyP  

Last updated 1 year, 3 months ago | 386 views

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 Python | In-place swapping of two numbers >>> a, b = 10, 20 >>> print(a, b) 10 20 >>> a, b = b, a >>> print(a, b) 20 10  

Last updated 1 year, 3 months ago | 407 views

Tags:- Python Django

A few common security issues that can be avoided by using Django are: Clickjacking Cross-site scripting and SQL injection

Last updated 1 year, 3 months ago | 342 views

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Difference between Python array and Python list Array Lists it is used to store only homogeneous data. The list is used to store heterogeneous data it occupies less amount of memory as the array stores …

Last updated 1 year, 3 months ago | 280 views

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Python program to count the number of capital letters in a file. with open(FILE_NAME) as my_file: count = 0 text = my_file.read() for character in text: if character.isupper(): count += 1 print(count)    

Last updated 1 year, 3 months ago | 320 views

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Python | Inheritance  Inheritance is a process by which a class can inherit the methods and properties of another class. The concept of inheritance provides the idea of reusability. The class from which we are inheriting is …

Last updated 1 year, 3 months ago | 324 views

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[::-1] is used to inverse the order of a sequence. >>> my_list = [1,2,3,5,6,7,8,9] >>> my_list[::-1] [9, 8, 7, 6, 5, 3, 2, 1]    

Last updated 1 year, 3 months ago | 280 views

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Python | ‘is’, ‘not’, and ‘in’ operators is: Returns True if both variables are the same object >>> x = 5 >>> y = 5 >>> z = 1 >>> x is y True >>> x …

Last updated 1 year, 3 months ago | 249 views

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The .py files are the python source code of a program. While the .pyc files contain the bytecode of the python files. We get bytecode after compilation of .py file (source code). The .pyc files are not …

Last updated 1 year, 3 months ago | 340 views

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We can use the python re module to match the string import re def check(txt): # regex pattern pattern = 'ab{4,8}' if re.search(pattern, txt): print('Match found') else: print('Match not found') check("abcbbbb") # Match not found check("aabbbbbc") # …

Last updated 1 year, 3 months ago | 331 views

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We can use the Counter method from the collections module from collections import Counter dict1 = {'a': 5, 'b': 3, 'c': 2} dict2 = {'a': 2, 'b': 4, 'c': 3} new_dict = Counter(dict1) + Counter(dict2) …

Last updated 1 year, 3 months ago | 285 views

Tags:- Python