Python | Difference between @staticmethod and @classmethod A staticmethod is a method that knows nothing about the class or the instance it was called on. It just gets the arguments that were passed, no implicit first argument. …

Finalize method is used for freeing up the unmanaged resources and cleaning up before the garbage collection method is invoked. This helps in performing memory management tasks.

Python | Deep and Shallow copies Shallow copy does the task of creating new objects and storing references to original elements. This does not undergo recursion to create copies of nested objects. It just copies the …

Python | new_style and old_style Old-style: With old-style classes, class and type are not quite the same things.  If obj is an instance of an old-style class, obj __class__ designates the class, but the type(obj) is always …

Django | ORM ORM stands for Object-relational Mapper. Instead of interacting with the database by writing raw SQL queries and converting the data returned from the query into a Python object, ORM allows us to interact …

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) …

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 …

Python | append() and extend() Function Both append() and extend() methods are methods used to add elements at the end of a list. append(element): append() method adds the given element at the end of the list. …

Interpreted language An Interpreted language executes its statements line by line. Languages such as Python, Javascript, R, PHP, and Ruby is a prime examples of Interpreted languages. Programs written in an interpreted language runs directly from …

[::-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]    

Python | Self Self is used to represent the instance of the class. With this keyword, you can access the attributes and methods of the class in python. It binds the attributes with the given arguments.   …

Python modules are the files having python code which can be functions, variables, or classes. These go by .py extension. The most commonly available built-in modules are: os math sys random re datetime JSON

Django | Set up Database We need to edit the setting.py file present in the project, which contains all the settings related to the project. By default Django comes with an SQLite database; The  SQLite database …

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 …