python black setup cfg

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black is a popular code formatting tool for python that automatically formats your code according to the pep 8 style guide. to use black in your python projects, you can configure it using a pyproject.toml file. this tutorial will guide you through the process of setting up black with a pyproject.toml configuration and provide code examples along the way.
before you begin, ensure you have the following:
if you haven't already, create a python project directory where you want to use black. you can do this manually or use a tool like virtualenv or poetry to manage your python environments.
you can install black using pip, which is the python package manager:
in your project directory, create a pyproject.toml file. this file will contain the configuration for black.
open the pyproject.toml file in a text editor and add the following configuration for black:
line-length: this option specifies the maximum line length for your code. you can adjust it according to your project's coding style.
target-version: set the target python version for formatting. in this example, we've set it to python 3.8.
include: this regular expression pattern specifies which files black should include for formatting. by default, it includes all .py files.
exclude: this regular expression pattern specifies which files and directories black should exclude from formatting. it's a good idea to exclude common directories and files that you don't want to format.
now that you've configured black, you can run it to format your python code. in your project directory, run the following command:
this command will format all python files in your project directory and its subdirectories according to the configuration in the pyproject.toml file.
you've successfully set up python black with a pyproject.toml configuration file. black will now automatically format your python code according to the specified style guidelines, helping you maintain consistent and readable code in your projects.
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