Error when trying to install the library through PIP

[Yoseph-Reyes]

Hello, I get this error when I try to install the library

Python311\Lib\site-packages\setuptools\installer.py:27: SetuptoolsDeprecationWarning: setuptools.installer is deprecated. Requirements should be satisfied by a PEP 517 installer. warnings.warn( WARNING: The wheel package is not available. Error parsing Traceback (most recent call last): File "c:\users\usuario\appdata\local\temp\pip-install-ou6hxccx\online-w3c-validator_f7de448c7c074fcd8c92b5a1a95fc803\.eggs\pbr-5.11.1-py3.11.egg\pbr\core.py", line 105, in pbr attrs = util.cfg_to_args(path, dist.script_args) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "c:\users\usuario\appdata\local\temp\pip-install-ou6hxccx\online-w3c-validator_f7de448c7c074fcd8c92b5a1a95fc803\.eggs\pbr-5.11.1-py3.11.egg\pbr\util.py", line 272, in cfg_to_args pbr.hooks.setup_hook(config) File "c:\users\usuario\appdata\local\temp\pip-install-ou6hxccx\online-w3c-validator_f7de448c7c074fcd8c92b5a1a95fc803\.eggs\pbr-5.11.1-py3.11.egg\pbr\hooks\__init__.py", line 25, in setup_hook metadata_config.run() File "c:\users\usuario\appdata\local\temp\pip-install-ou6hxccx\online-w3c-validator_f7de448c7c074fcd8c92b5a1a95fc803\.eggs\pbr-5.11.1-py3.11.egg\pbr\hooks\base.py", line 27, in run self.hook() File "c:\users\usuario\appdata\local\temp\pip-install-ou6hxccx\online-w3c-validator_f7de448c7c074fcd8c92b5a1a95fc803\.eggs\pbr-5.11.1-py3.11.egg\pbr\hooks\metadata.py", line 25, in hook self.config['version'] = packaging.get_version( ^^^^^^^^^^^^^^^^^^^^^^ File "c:\users\usuario\appdata\local\temp\pip-install-ou6hxccx\online-w3c-validator_f7de448c7c074fcd8c92b5a1a95fc803\.eggs\pbr-5.11.1-py3.11.egg\pbr\packaging.py", line 862, in get_version version = _get_version_from_pkg_metadata(package_name) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "c:\users\usuario\appdata\local\temp\pip-install-ou6hxccx\online-w3c-validator_f7de448c7c074fcd8c92b5a1a95fc803\.eggs\pbr-5.11.1-py3.11.egg\pbr\packaging.py", line 830, in _get_version_from_pkg_metadata pkg_metadata = email.message_from_file(pkg_metadata_file) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\USUARIO\AppData\Local\Programs\Python\Python311\Lib\email\__init__.py", line 54, in message_from_file return Parser(*args, **kws).parse(fp) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\USUARIO\AppData\Local\Programs\Python\Python311\Lib\email\parser.py", line 53, in parse data = fp.read(8192) ^^^^^^^^^^^^^ File "C:\Users\USUARIO\AppData\Local\Programs\Python\Python311\Lib\encodings\cp1252.py", line 23, in decode return codecs.charmap_decode(input,self.errors,decoding_table)[0] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 1737: character maps to <undefined> error in setup command: Error parsing C:\Users\USUARIO\AppData\Local\Temp\pip-install-ou6hxccx\online-w3c-validator_f7de448c7c074fcd8c92b5a1a95fc803\setup.cfg: UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 1737: character maps to <undefined> [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

[Makwana-Bharat]

i also get same error

pip install -U Online-W3C-Validator
Collecting Online-W3C-Validator
Using cached Online-W3C-Validator-0.3.21.tar.gz (77 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Installing backend dependencies ... done
Preparing metadata (pyproject.toml) ... error
error: subprocess-exited-with-error

× Preparing metadata (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [31 lines of output]
Error parsing
Traceback (most recent call last):
File "...\AppData\Local\Temp\pip-build-env-yptct9bq\normal\Lib\site-packages\pbr\core.py", line 105, in pbr
attrs = util.cfg_to_args(path, dist.script_args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "...\AppData\Local\Temp\pip-build-env-yptct9bq\normal\Lib\site-packages\pbr\util.py", line 272, in cfg_to_args
pbr.hooks.setup_hook(config)
File "...\AppData\Local\Temp\pip-build-env-yptct9bq\normal\Lib\site-packages\pbr\hooks_init_.py", line 25, in setup_hook
metadata_config.run()
File "...\AppData\Local\Temp\pip-build-env-yptct9bq\normal\Lib\site-packages\pbr\hooks\base.py", line 27, in run
self.hook()
File "...\AppData\Local\Temp\pip-build-env-yptct9bq\normal\Lib\site-packages\pbr\hooks\metadata.py", line 25, in hook
self.config['version'] = packaging.get_version(
^^^^^^^^^^^^^^^^^^^^^^
File "...\AppData\Local\Temp\pip-build-env-yptct9bq\normal\Lib\site-packages\pbr\packaging.py", line 862, in get_version
version = _get_version_from_pkg_metadata(package_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "...\AppData\Local\Temp\pip-build-env-yptct9bq\normal\Lib\site-packages\pbr\packaging.py", line 830, in get_version_from_pkg_metadata
pkg_metadata = email.message_from_file(pkg_metadata_file)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "...\AppData\Local\Programs\Python\Python311\Lib\email_init.py", line 54, in message_from_file
return Parser(*args, **kws).parse(fp)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "...\AppData\Local\Programs\Python\Python311\Lib\email\parser.py", line 53, in parse
data = fp.read(8192)
^^^^^^^^^^^^^
File "...\AppData\Local\Programs\Python\Python311\Lib\encodings\cp1252.py", line 23, in decode
return codecs.charmap_decode(input,self.errors,decoding_table)[0]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 1753: character maps to
error in setup command: Error parsing ...\AppData\Local\Temp\pip-install-ofxq7n87\online-w3c-validator_2a2c81db17914d328200cea924d674e3\setup.cfg: UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 1753: character maps to
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

[hype8912]

On a Windows computer set the following environment variable and the package will install correctly.
PYTHONUTF8=1

Reference to information. https://stackoverflow.com/questions/49640513/unicodedecodeerror-charmap-codec-cant-decode-byte-0x9d-in-position-x-charac/70923999#70923999

[Nagidrop]

As @hype8912 mentioned, setting environment variable PYTHONUTF8=1 fixes the issue.

It can be set in JupyterLab using this line:

%env PYTHONUTF8 1