What is Python🐍?
Python is a programming language known for its simplicity and readability. It was created by Guido van Rossum and first introduced in 1991. Python supports many programming styles, including procedural, object-oriented, and functional programming. Python is named after the British comedy television show "Monty Python’s Flying Circus", not the snake!
Key Features
Python code is executed line by line that simplifies debugging and testing. Python is beginner-friendly because of its English-like syntax and indentation-based structure. It aids in many programming styles like procedural, object-oriented, and functional programming.
Fields used in Python:
- Web development
- Software development
- Data science and machine learning
- Mathematics and scientific computing
- System scripting
- Artificial intelligence
- Game development
Advantages
- Easy to learn: simple syntax that's beginner-friendly
- Versatile and open-source: used in many fields and freely available.
- Enhances productivity: helps developers write faster and more efficiently.
- Supports a wide range of libraries: large ecosystem of libraries for different uses
- Extensive library ecosystem: large collection of already built modules and packages.
- Strong community: community providing support and resources
- Interpreted language: executes code line by line, simplifying debugging
- Cross-platform compatibility: runs on Windows, macOS, and Linux
- Scalable: scales from small scripts to large applications
Disadvantages
- Design limitations: restricts some advanced use cases
- Memory inefficiency: uses more memory than other languages
- Weak mobile computing support: less suitable for mobile app development
- Prone to runtime errors: dynamic typing may lead to runtime errors
- Slower execution speed: slower than compiled languages like C or C++
- Limited multi-threading: Global Interpreter Lock (GIL) limits true multi-threading for Central Processing Unit(CPU)-bound tasks
Naming Convention
Snake_case is a naming convention used in Python. All words are written in lowercase and spaces between words are replaced with underscores (_).
Python Syntax
Python uses indentation to define code blocks that makes it structured and easy to follow.
print("Hello, World!") # Output: Hello, World!
Functions: Functions are defined using the def keyword, followed by the function name and parameters.
def greet(name):
return f"Hello, {name}!"
print(greet("Jane")) # Output: Hello, Jane!
Comments: Single-line comments begin with the # symbol, and multi-line comments are enclosed in triple quotes ''' or """.
# This is a single-line comment
'''
This is a
multi-line comment
'''
Variables: There is no need to declare variable types. Python automatically assigns types at runtime.
x = 15
y = "Hello"
Conditionals and Loops: Python supports if, else, elif for conditionals, and for and while for loops.
for i in range(8):
print(i)
Some companies that use Python include:
- Dropbox
- NASA
- Spotify
- YouTube
- Uber
- Airbnb
Conclusion
Python's simple and readable features make it a great choice for both beginner or experienced programmers. Its flexibility and large number of libraries make it easy to explore many areas of development.
Sources
https://en.wikipedia.org/wiki/Python_(programming_language)
https://www.python.org/
https://www.w3schools.com/python/python_intro.asp
https://www.nextacademy.com/blog/python-101-easy-to-learn-beginners/
https://sl.bing.net/jkn4sJQBmXk
https://sl.bing.net/kpfcnkn74DI
https://www.geeksforgeeks.org/python-features/
https://www.britannica.com/technology/Python-computer-language