🖊️Effective Python Tips

Sat, 21 Jan 2023 00:00:00 +0000

1. Pythonic Thinking Link to heading

Regarding Naming
1. Functions, variables, and attributes use lowercase letters, with words separated by underscores.
2. Protected instance attributes start with a single underscore.
3. Private instance attributes should start with two underscores.
4. Class (and exception) names should have the first letter capitalized.
5. Module-level constants are all uppercase letters, with words separated by underscores.
6. Instance methods in classes should name the first parameter self to represent the object itself.
7. The first parameter of class methods should be named cls to represent the class itself.
Regarding Expressions
1. Use inline negation (write the negation directly before the content to be negated). For example: if a is not b
2. To check if something is empty, you can directly test it (empty is False). For example: if not somelist
3. If an expression does not fit on one line, it should be enclosed in parentheses and broken into multiple lines.
4. Use parentheses to continue multi-line expressions instead of the backslash \.
Regarding Imports
1. import statements should be placed at the top.
2. Use absolute names for imports.
3. When importing, first divide into three parts: standard library, third-party modules, and your own modules.

When formatting strings, you can use Python’s special f-string method.