In Python, None is a special keyword that represents the absence of a value. It is used to signify that a variable or object does not have a value assigned to it. In other words, it is a way to represent "nothing" or "null" in Python. Use of None When you create a variable ...
Yes, lookup functionality is commonly implemented in programming languages. Most programming languages offer built-in data structures or libraries that support efficient lookup operations. For example, dictionaries in Python, hash maps in Java, and associative arrays in PHP provide lookup capabilities by...
In Python, parentheses are used to enclose function arguments, and square brackets are used to access elements of a list or dictionary. Curly brackets are not used in Python. What is the difference between square brackets and curly brackets?
What is doing __str__ function in Django? defstr(self): is a python method which is called when we use print/str to convert object into a string. It is predefined , however can be customised. Will see step by step.Suppose below is our code. classtopics():def__init__(self,topics)...
Understand what is PHP developer. Explore the career path of a PHP developer along with the tools, skills, responsibilities, and future scope of jobs & salary.
Oriented Programming (OOP) in this Python tutorial. In Python, object-oriented Programming (OOPs) is a programming paradigm that uses objects and classes in programming. OOPs, concepts in python, aim to implement real-world entities like inheritance, polymorphisms, encapsulation, etc., in the ...
Discover What MEAN stack is, a technology stack comprising MongoDB, Express.js, AngularJS, and Node.js for creating dynamic web applications.
What is if __name__ == "__main__"? By: Rajesh P.S.In Python, the __name__ attribute is a special built-in variable that holds the name of the current module or script. When the Python interpreter runs a script or module, it assigns the value __main__ to the __name__ ...
String functions in Python? Find length of string using len(). "len" is nothing just short form of length.syntax to write len functionprint(len(name_of_string)) To check string endwiths given entry or not (it will return true || false). ...
Output (< Python3.7 )>>> 'a' * 20 is 'aaaaaaaaaaaaaaaaaaaa' True >>> 'a' * 21 is 'aaaaaaaaaaaaaaaaaaaaa' FalseMakes sense, right?💡 Explanation:The behavior in first and second snippets is due to a CPython optimization (called string interning) that tries to use existing ...