Poetry >= 1.5.0 incompatibility

[Matesanz]

System

• Pycodestyle version : 2.11.0
• Poetry version: Poetry (version 1.6.1)
• Python version: Python 3.11.5 [GCC 10.2.1 20210110] on linux
• OS version and name: Ubuntu 20.04
• pyproject.toml:

Linked to:

• #813
• python-poetry/poetry#8490

Description

👉 Currently, when adding multiple sources to Poetry >= 1.5.0, all of them have the same section name [tool.poetry.source] (as you can see in the pyproject.toml below). So when trying to read that file with the default python ConfigParser Module an configparser.DuplicateSectionError exception is raised. ConfigParser is used by Pycodestyle to read the pyproject.toml file. Making them incompatible with Poetry.

In Poetry, sources are defined like this:

# pyproject.toml

[[tool.poetry.source]]
name = "PyPI"
priority = "primary"

[[tool.poetry.source]]
name = "torch_cpu"
url = "https://download.pytorch.org/whl/cpu"
priority = "supplemental"

So when running pycodestyle </path/to/file.py> --config=pyproject.toml we get this error:

$ pycodestyle main.py --config=pyproject.toml

Traceback (most recent call last):
  File "/home/vscode/.pyenv/versions/3.11.5/bin/pycodestyle", line 8, in <module>
    sys.exit(_main())
             ^^^^^^^
  File "/home/vscode/.pyenv/versions/3.11.5/lib/python3.11/site-packages/pycodestyle.py", line 2636, in _main
    style_guide = StyleGuide(parse_argv=True)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/vscode/.pyenv/versions/3.11.5/lib/python3.11/site-packages/pycodestyle.py", line 2295, in __init__
    options, self.paths = process_options(
                          ^^^^^^^^^^^^^^^^
  File "/home/vscode/.pyenv/versions/3.11.5/lib/python3.11/site-packages/pycodestyle.py", line 2593, in process_options
    options = read_config(options, args, arglist, parser)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/vscode/.pyenv/versions/3.11.5/lib/python3.11/site-packages/pycodestyle.py", line 2518, in read_config
    config.read(cli_conf)
  File "/home/vscode/.pyenv/versions/3.11.5/lib/python3.11/configparser.py", line 713, in read
    self._read(fp, filename)
  File "/home/vscode/.pyenv/versions/3.11.5/lib/python3.11/configparser.py", line 1086, in _read
    raise DuplicateSectionError(sectname, fpname,
configparser.DuplicateSectionError: While reading from 'pyproject.toml' [line 49]: section '[tool.poetry.source]' already exists

ℹ️ Using ConfiParser is not intended to read TOML files, but INI files, that may look similar but they are not the same. Using toml module should be preferred over configparser.

[Ian Stapleton Cordasco]

Pycodestyle does not support project files as you've found. We will not be adding support either.