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I am using pyproject.toml to configure black. However, when this file is added, pip3 install -e . --user fails with the following error:

 ERROR: Complete output from command /usr/bin/python3 -c 'import setuptools, tokenize;__file__='"'"'/home/sean/git/auto-md/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' develop --no-deps --user --prefix=: ERROR: usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...] or: -c --help [cmd1 cmd2 ...] or: -c --help-commands or: -c cmd --help error: option --user not recognized ---------------------------------------- ERROR: Command "/usr/bin/python3 -c 'import setuptools, tokenize;__file__='"'"'/home/sean/git/auto-md/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' develop --no-deps --user --prefix=" failed with error code 1 in /home/sean/git/auto-md/

Why is this error occuring and how can I resolve it?

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1 Answer 1

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6

According to the discussion in this GitHub issue, to resolve this issue, you need to run pip3 install -e . --user --no-use-pep517.

The reasons for this are complicated, but essentially:

  1. By using pyproject.toml, you're indicating to pip that you should use the new pep517 installation process.

  2. pep517 does not support -e or --user, so it fails.

  3. There is no other way to automatically configure black, so you're stuck with pyproject.toml and --no-use-pep517.

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