InvalidRequirement error while installing package PlexTraktSync using pipx

[29axe]

Describe the bug

I tried to install package PlexTraktSync and it keeps failing, raising exception about InvalidRequirement, related to furo package version.

I tried multiple versions of the package, mulitple versions of python (3.10 / 3.11).
I tried all the steps in troubleshooting page (package installs correctly using pip in test env).
I tried installing another package and it did not raise this issue.
I don't know why this happens only with this particular package.

How to reproduce

pipx install PlexTraktSync --verbose
On Windows 10, python 3.10.9 installed globally using installer x64 (not from the store).

PS C:\Users\USER.local> pipx install PlexTraktSync --verbose
pipx >(setup:757): pipx version is 1.1.0
pipx >(setup:758): Default python interpreter is 'C:\Program Files\Python310\python.exe'
pipx >(mkdir:81): creating directory C:\Users\USER.local\pipx\venvs
pipx >(mkdir:81): creating directory C:\Users\USER.local\pipx.cache
pipx >(package_name_from_spec:323): Determined package name: plextraktsync
pipx >(package_name_from_spec:324): Package name determined in 0.0s
creating virtual environment...
pipx >(run_subprocess:173): running C:\Program Files\Python310\python.exe -m venv --without-pip C:\Users\USER.local\pipx\venvs\plextraktsync
creating shared libraries...
pipx >(run_subprocess:173): running C:\Program Files\Python310\python.exe -m venv --clear C:\Users\USER.local\pipx\shared
pipx >(upgrade:91): Upgrading shared libraries in C:\Users\USER.local\pipx\shared
upgrading shared libraries...
pipx >(run_subprocess:173): running C:\Users\USER.local\pipx\shared\Scripts\python.exe -m pip --disable-pip-version-check install --force-reinstall --upgrade pip setuptools wheel
pipx >(run_subprocess:173): running C:\Users\USER.local\pipx\venvs\plextraktsync\Scripts\python.exe -c import sysconfig; print(sysconfig.get_path('purelib'))
pipx >(run_subprocess:173): running C:\Users\USER.local\pipx\shared\Scripts\python.exe -c import sysconfig; print(sysconfig.get_path('purelib'))
pipx >(run_subprocess:173): running C:\Users\USER.local\pipx\venvs\plextraktsync\Scripts\python.exe --version
pipx >(_parsed_package_to_package_or_url:128): cleaned package spec: plextraktsync
installing plextraktsync...
pipx >(run_subprocess:173): running C:\Users\USER.local\pipx\venvs\plextraktsync\Scripts\python.exe -m pip install plextraktsync
pipx >(run_subprocess:173): running <fetch_info_in_venv commands>

pipx >(rmdir:55): removing directory C:\Users\USER.local\pipx\venvs\plextraktsync
Traceback (most recent call last):
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\packaging\requirements.py", line 35, in init
parsed = parse_requirement(requirement_string)
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\packaging_parser.py", line 64, in parse_requirement
return _parse_requirement(Tokenizer(source, rules=DEFAULT_RULES))
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\packaging_parser.py", line 82, in _parse_requirement
url, specifier, marker = _parse_requirement_details(tokenizer)
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\packaging_parser.py", line 116, in _parse_requirement_details
specifier = _parse_specifier(tokenizer)
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\packaging_parser.py", line 203, in _parse_specifier
with tokenizer.enclosing_tokens("LEFT_PARENTHESIS", "RIGHT_PARENTHESIS"):
File "C:\Program Files\Python310\lib\contextlib.py", line 142, in exit
next(self.gen)
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\packaging_tokenizer.py", line 181, in enclosing_tokens
self.raise_syntax_error(
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\packaging_tokenizer.py", line 161, in raise_syntax_error
raise ParserSyntaxError(
packaging._tokenizer.ParserSyntaxError: Expected closing RIGHT_PARENTHESIS
furo (>=2021.8.17-beta.43,<2022.0.0); extra == "docs"
~~~~~~~~~~~~~~^

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "C:\Program Files\Python310\lib\runpy.py", line 196, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\Program Files\Python310\lib\runpy.py", line 86, in run_code
exec(code, run_globals)
File "c:\users\USER\appdata\roaming\python\python310\scripts\pipx.exe_main.py", line 7, in
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\main.py", line 819, in cli
return run_pipx_command(parsed_pipx_args)
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\main.py", line 202, in run_pipx_command
return commands.install(
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\commands\install.py", line 60, in install
venv.install_package(
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\venv.py", line 244, in install_package
self._update_package_metadata(
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\venv.py", line 318, in _update_package_metadata
venv_package_metadata = self.get_venv_metadata_for_package(
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\venv.py", line 300, in get_venv_metadata_for_package
venv_metadata = inspect_venv(
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\venv_inspect.py", line 251, in inspect_venv
app_paths_of_dependencies = _dfs_package_apps(
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\venv_inspect.py", line 142, in _dfs_package_apps
app_paths_of_dependencies = _dfs_package_apps(
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\venv_inspect.py", line 121, in _dfs_package_apps
dependencies = get_package_dependencies(
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\pipx\venv_inspect.py", line 54, in get_package_dependencies
for req in map(Requirement, dist.requires or []):
File "C:\Users\USER\AppData\Roaming\Python\Python310\site-packages\packaging\requirements.py", line 37, in init
raise InvalidRequirement(str(e)) from e
packaging.requirements.InvalidRequirement: Expected closing RIGHT_PARENTHESIS
furo (>=2021.8.17-beta.43,<2022.0.0); extra == "docs"
~~~~~~~~~~~~~~^
PS C:\Users\USER.local>

Expected behavior

Install without raising issue.

[dukecat0]

I think this is related to pypa/packaging#629.

[glensc]

what's the workaround? downgrade pip? uninstall something?

[dukecat0]

@29axe You can check the version of packaging with pip list.

If you have packaging 22.0, you can downgrade it to 21.3 by pip install packaging==21.3.

[29axe]

Could not test before. I just downgraded packaging to 21.3 and it worked.

[uranusjr]

Closing this since we can’t do anything about it here.