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Python is a high-level, interpreted, and dynamically typed programming language that is widely used for developing various applications. It was first introduced in the late 1980s by Guido van Rossum and has since become one of the most popular programming languages worldwide. It is known for its simplicity, readability, and versatility. In this blog, we will cover the basic knowledge of Python in detail.
Variables and Data Types:
Variables are used to store values in Python. A variable is a name that refers to a value. The equal sign (=) is used to assign a value to a variable. Python supports various data types such as integers, floating-point numbers, strings, and Boolean values.
Integers are whole numbers, such as 1, 2, 3, 4, and so on. Floating-point numbers are decimal numbers, such as 3.14, 0.01, and so on. Strings are a sequence of characters, such as "hello", "world", "Python", and so on. Boolean values are True or False.
Here's an example of defining and using variables in Python:
# Define variables
x = 1
y = 3.14
z = "hello"
w = True
# Print variables
print(x)
print(y)
print(z)
print(w)
Control Flow Statements:
Control flow statements are used to direct the execution of programming. Python supports if-else expressions, loops, and functions. If-else statements are used to execute code based on a condition. Loops are used to execute code repeatedly, and functions are used to group a series of related statements.
Also read: What are the Advantages of Python Programming?
Functions:
Functions are chunks of code that execute a specified task. They can be defined using the def keyword. Functions can have parameters and return values.
Libraries and Modules:
Python has a large variety of libraries and modules that may be imported into a programme to increase its capability. NumPy, Pandas, and Matplotlib are other popular libraries.
Object-Oriented Programming:
Python supports object-oriented programming (OOP). OOP is a programming paradigm that employs objects to represent real-world phenomena. Python classes are used to define objects, and objects are instances of a class.
Also read: Why is Python so popular in machine learning?
Handling of Files:
Python enables file operations such as reading from and writing to files. Files can be opened in several modes, including read, write, and add.
Conclusion:
To summarise, Python is a versatile programming language that may be used for a variety of applications. It has a basic syntax and is straightforward to learn. Python fundamentals include variables, data types, operators, control flow statements, functions, libraries and modules, object-oriented programming, and file handling.