Python Learning
Python is an easy to learn, powerful programming language. It has efficient high-level data structures and a simple but effective approach to object-oriented programming. Python’s elegant syntax and dynamic typing, together with its interpreted nature, make it an ideal language for scripting and rapid application development in many areas on most platforms.
Naming Styles
The table below outlines some of the common naming styles in Python code and when you should use them:
| Type | Naming Convention | Examples |
|---|---|---|
| Function | Use a lowercase word or words. Separate words by underscores to improve readability. | function, my_function |
| Variable | Use a lowercase single letter, word, or words. Separate words with underscores to improve readability. | x, var, my_variable |
| Class | Start each word with a capital letter. Do not separate words with underscores. This style is called camel case or pascal case. | Model, MyClass |
| Method | Use a lowercase word or words. Separate words with underscores to improve readability. | class_method, method |
| Constant | Use an uppercase single letter, word, or words. Separate words with underscores to improve readability. | CONSTANT, MY_CONSTANT, MY_LONG_CONSTANT |
| Module | Use a short, lowercase word or words. Separate words with underscores to improve readability. | module.py, my_module.py |
| Package | Use a short, lowercase word or words. Do not separate words with underscores. | package, mypackage |
How to Write Beautiful Python Code With PEP 8 – Real Python
Learn how to write high-quality, readable code by using the Python style guidelines laid out in PEP 8. Following these guidelines helps you make a great impression when sharing your work with potential employers and collaborators.
Real Python
print(2 ** 3 ** 2) = 512
Explanation:
Remember, we have not used brackets here. And Exponent operator ** has right-to-left associativity in Python.
x = y += 2 (Syntax Error): expression is Invalid