Basics of python programming
Overview of Python Programming
Data types: Python has a number of built-in data types, including integers, floating-point numbers, strings, lists, and dictionaries. Python is a dynamically-typed language, which means that you don't need to specify the data type of a variable when you declare it.
Variables: Variables in Python are used to store values, and are declared by assigning a value to a name. For example: x = 5 declares a variable x and assigns it the value of 5. Variable names can contain letters, numbers, and underscores, but cannot start with a number.
Control structures: Python has a number of control structures that allow you to control the flow of your program, such as if-else statements, for loops, and while loops. These structures allow you to perform different actions depending on different conditions.
Functions: Functions are blocks of code that are designed to perform a specific task. Functions are defined using the def keyword, and can accept parameters and return values. Functions are a way to organize and reuse code, making your program more modular and easier to understand.
Libraries: Python has a large and active community, which has created a wide variety of libraries for different tasks. Some popular libraries are NumPy, Pandas, Matplotlib, and Scikit-learn for data science, and Django, Flask, and Pyramid for web development.
Indentation: Python uses indentation to indicate the scope of control structures and functions. This means that the level of indentation of a line of code determines whether it is part of a function, loop, or if-else statement. This is different from other languages which use curly braces or other symbols to indicate the scope.
Comments: Comments in Python start with a '#' symbol, and are used to explain the code. Comments are ignored by the interpreter and are not executed.
Object-Oriented Programming (OOP): Python supports object-oriented programming, which is a programming paradigm that is based on the concept of objects, which have properties and methods.
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