python black config
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black is a popular python code formatter that automatically reformats your code to adhere to pep 8, the python style guide. configuring black can be essential to ensure it formats your code exactly how you want it. in this tutorial, we will walk you through setting up and configuring black for your python projects.
before you can start configuring black, you need to install it. you can use pip, the python package manager, to install black:
make sure you are working in your project's virtual environment if you have one.
black allows you to configure its behavior using a pyproject.toml file. this file should be placed in the root directory of your project. if you don't already have one, create it.
now, open the pyproject.toml file in a text editor and add the following configuration options:
here's an explanation of the configuration options:
line-length: sets the maximum line length for code. the default is 88 characters, but you can adjust it to your preferred line length.
target-version: specifies the python version that black should target. you can choose multiple versions if needed.
include: a regular expression that matches files to be formatted by black. the default value matches python files with a .py or .pyi extension.
exclude: a regular expression that matches files and directories to be excluded from formatting. this example excludes common directories and files like .git, .venv, and more.
with your configuration in place, you can now run black on your python code. navigate to your project directory and execute the following command:
this command tells black to format all the python files in the current directory and its subdirectories according to your configuration.
you can integrate black into your development workflow by running it automatically with pre-commit hooks or other tools. for example, to use black with pre-commit, add the following configuration to your .pre-commit-config.yaml file:
then, run pre-commit install to set up the pre-commit hook. ...
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