Python Tutorials

Python Nested Dictionary

When you’re working with dictionaries in Python, you may encounter a situation where a dictionary contains another dictionary. This structure of data is often referred to as a nested dictionary, and has a wide range of potential use cases in…

Python Input: A Step-By-Step Guide

The Python input() and raw_input() functions are used to collect user input. input() has replaced raw_input() in Python 3 and onward. Both functions return a user input as a string. Processing user input is a crucial part of programming. For…

Python Add to Dictionary: A Guide

Dictionaries are used to store data using the key-value structure in Python. When you’re working with dictionaries, you may ask yourself, how can I add an item to a dictionary? This article will answer that question. We’ll break down the…

Python Random Choice

When you’re coding in Python, you may encounter a scenario where you want to choose an item randomly from a list. For instance, if you’re building a color guessing game, you may want the color the user is guessing to…

Python Find: A Guide

Finding a substring in a string is a common operation in Python. For instance, suppose you have a string containing a list of your favorite book titles. You may want to find a certain book in that list, and return…

Python List Methods: A Step-By-Step Guide

Lists are a built-in data structure in Python 3. Python Lists can be used to organize and store data in an ordered way, such as names of suppliers for a manufacturing company, salary information for a company’s employees, a list…

A Guide to Python isalpha, isnumeric, and isAlnum

Python isalpha() returns true if a string only contains letters. Python isnumeric() returns true if a string contains only numbers. Python isalnum() only returns true if a string contains alphanumeric characters, without symbols. When you’re working with strings in Python,…

Python Index: A Step-By-Step Guide

The Python index() method returns the index value for an item in a list or a string. In both cases index() returns the lowest resulting index for the item, or ValueError if the item doesn’t exist in the list. When…

How to Initialize a List in Python

To initialize a list in Python assign one with brackets, initialize with the list() function, create an empty list with multiplication, or use comprehension. All of the above are effective for initializing a list in Python. A list is a…

Python Inheritance: A Step-By-Step Guide

Python inheritance is when a subclass uses the code from another class. Inheritance is an essential feature in object-oriented languages like Python that makes coding easier and more efficient. Python is an object-oriented language, which means that it supports creating…

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