Autopep8 is a popular Python package that automatically formats Python code according to the PEP 8 style guide. It helps developers adhere to a consistent coding style and improves code readability. Autopep8 can be used from the command line or integrated into various code editors and IDEs.
To use Autopep8, you need to install it first. You can do so by running the following command:
pip install autopep8
Once installed, you can format Python files using Autopep8 by running the following command in your terminal:
autopep8 <filename>
Autopep8 provides several command-line options that allow you to control its behavior when formatting Python code. Here are some commonly used commands and options:
| Command | Description |
|---|---|
autopep8 <filename> | Format a single Python file and overwrite the original file. |
autopep8 <filename1> <filename2> ... | Format multiple Python files in one command. |
autopep8 <input_file> --output <output_file> | Format a file and write the formatted code to a different file. |
autopep8 <directory> --recursive | Recursively format files in a directory and its subdirectories. |
autopep8 <filename> --diff | Show the differences (diff) between original and formatted code. |
autopep8 <filename> --aggressive --indent-size=4 | Specify formatting options like aggressive changes and indentation size. |
These commands and options provide a range of functionality to format Python code using Autopep8. Remember that you can explore additional options and details by running autopep8 --help in your terminal.
Python autopep8 example
Here’s an example that demonstrates how to use Autopep8 in Python:
import autopep8
# Example code with formatting issues
code = """
def add_numbers( a,b):
return a+b
print(add_numbers( 5 ,10))
"""
# Format the code using Autopep8
formatted_code = autopep8.fix_code(code)
# Print the formatted code
print(formatted_code)
In this example, we have a simple Python code snippet with some formatting issues like inconsistent spacing and indentation. We import the autopep8 module and define the code variable with the code to be formatted.
Using the fix_code function from autopep8, we pass the code variable as an argument. Autopep8 processes the code and returns the formatted version, which is stored in the formatted_code variable.
Finally, we print the formatted_code, which will output the properly formatted code:
Here are some key features of Autopep8:
- Consistent indentation: Autopep8 adjusts the indentation of your code, ensuring it follows the recommended style.
- Correcting spacing issues: Autopep8 fixes spacing inconsistencies, such as extra spaces, missing spaces, or improper spacing around operators, commas, and parentheses.
- Line length enforcement: Autopep8 can automatically wrap or reformat long lines to adhere to the maximum line length specified in PEP 8.
- Import organization: Autopep8 can sort and group import statements, making them easier to read and maintain.
- Code rearrangement: Autopep8 can rearrange code elements, such as function and class definitions, to conform to PEP 8 recommendations.
Note: IDE: PyCharm 2021.3.3 (Community Edition)
Windows 10
Python 3.10.1
All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.