Python functions and methods

Functions A function in Python is a block of organized, reusable code that is used to perform a single, related action. Functions provide better modularity for your application and a high degree of code reusing. Here’s how you can define a function: def greet(name): print(f"Hello, {name}!") And here’s how you can call it: greet("Alice") # Output: Hello, Alice! Functions can also return a value using the return statement: def add(a, b): return a + b result = add(5, 3) # result is now 8 Methods Methods in Python are very similar to functions except they are associated with object/classes....

Python control flow statements

Control flow statements in Python are used to control the order in which the program’s code executes. Here are some of the most common ones: If, Elif, and Else if, elif, and else are used for conditional execution, i.e., to execute a certain block of code if a certain condition is met. if: The if statement is used to test a specific condition. If the condition is True, the block of code under it is executed....

Python data structures

Data structures in Python are used to store collections of data in an organized and efficient way. Here are some of the most common ones: Lists A list in Python is a collection of items. Lists are ordered, changeable, and allow duplicate values. Lists are written with square brackets. # Example of list data type my_list = ["apple", "banana", "cherry"] Tuples A tuple in Python is similar to a list. The difference between the two is that tuples are immutable, which means we cannot change the elements of a tuple once it is assigned....

Python data types

Python has several built-in data types, which are commonly used in Python programming. Here are some of the most common ones: Numbers Python supports three types of numbers - integer, float, and complex. Integer: These are whole numbers, positive or negative, without decimals. Example: 5, -3, 0 Float: These are real numbers with a decimal point. Example: 3.14, -0.01, 9.0 Complex: These are numbers with a real and imaginary component. Example: 3+4j, 5j # Examples of number data types x = 5 # integer y = 3....

Python variables

What is a Variable in Python? Think of a variable as a storage box where you can keep different items. In Python, a variable allows you to store a value (like a number, a string of text, or a list of items) that you can use and manipulate in your code. Creating Variables Creating a variable in Python is straightforward. You just need to choose a name for your variable and then assign a value to it using the equals sign =....