Python TypeError: object of type 'int' has no len() Solution
In Python, we have a len() function that returns the total number of characters and items present i…
Python TypeError: ‘NoneType’ object is not subscriptable Solution
The None value in Python has a data type of NoneType, that represents a Falsy value. We gener…
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Python NameError: name 'self' is not defined [Solved]
In Python, every class method's first parameter is "self". It is the instance of a cl…
Python TypeError: object of type 'NoneType' has no len()
The len() is an inbuilt Python function that returns the total number of elements or characters pre…
Python List Methods: All you need to Know
The list is one of Python's built-in data structures. It is a mutable and ordered data structur…
Python IndentationError: expected an indented block Solution
Like other programming languages Python also follow a strict syntax to write the code. In Python, w…
Python TypeError: 'str' object does not support item assignment Solut…
A Python string is a sequence of characters. The string characters are immutable, which means once …
Best Python Certification to Consider in 2026
Python has become one of the most extensively used programming languages. As a result, more and mor…
Find Minimum Platforms Needed to Avoid Delay in the Train Arrival
Problem The objective is to identify the minimal number of train platforms necessary for the rai…
Best C & C++ Bootcamp Options to Go For in 2026
C and C++ are the most basic programming languages and are a base for many other languages. Both la…
Find maximum profit earned by buying and selling shares any number of…
Problem You are provided an array of prices, where prices[i] represents the current price of a s…
Sort an array 0s, 1s and 2s (Dutch National Flag Problem)
Problem Given an array containing only 0s, 1s and 2s. Write an efficient algorithm to sort the a…