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

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 …

Using PDB we debug code in python. Some pdb commands include- <b> — Add breakpoint <c> — Resume execution <s> — Debug step by step <n> — Move to next line <l> — List source code …

Yes, it is possible if the base class is instantiated by other child classes or if the base class is a static method.

Python | Docstring  A documentation string or docstring is a multiline string used to document a specific code segment. The docstring should describe what the function or method does.  

Python | map() Function The map() function executes a specified function for each item in an iterable. The map() function in Python has two parameters, function and iterable. The map() function takes a function as an argument and …

Python | Dogpile effect In case the cache expires, what happens when a client hits a website with multiple requests is what we call the dogpile effect. To avoid this, we can use a semaphore lock. When …

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)    

yield is a keyword beares the ability to turn any function into a generator.  Much like the standard return keyword, but returns a generator object. It is also true that one function may observe multiple …

Django is a framework that allows you to build large projects. On the other hand, Flask is used to build smaller websites but flask is much easier to learn and use compared to Django. Django is …

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") # …

Python | Main Function In the world of programming languages, the main is considered as an entry point of execution for a program. But in python, it is known that the interpreter serially interprets the file …

Python | context manager Context managers allow you to allocate and release resources precisely when you want to. The most widely used example of context managers is the with() statement.  with open('some_file', 'w') as opened_file: opened_file.write('Hola!')   The …

Django | Difference between a project and an app The project covers the entire application, while an app is a module or application within the project that deals with one dedicated requirement. So, a project consists …

The csrf_token is used for protection against Cross-Site Request Forgeries. This kind of attack takes place when a malicious website consists of a link, some JavaScript, or a form whose aim is to perform some …