'METADATA' crash during 'pip install' #8676

KishoreKumarRV · 2020-08-01T17:06:02Z

pip version:20.2
Python version:3.8.4
Operating system:windows 10

C:\Users\elcot>pip install scipy
Requirement already satisfied: scipy in c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages (1.4.1)
Requirement already satisfied: numpy>=1.13.3 in c:\users\elcot\appdata\roaming\python\python38\site-packages (from scipy) (1.19.0)
ERROR: Error while checking for conflicts. Please file an issue on pip's issue tracker: https://github.com/pypa/pip/issues/new
Traceback (most recent call last):
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3021, in _dep_map
    return self.__dep_map
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2815, in __getattr__
    raise AttributeError(attr)
AttributeError: _DistInfoDistribution__dep_map

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3012, in _parsed_pkg_info
    return self._pkg_info
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2815, in __getattr__
    raise AttributeError(attr)
AttributeError: _pkg_info

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\commands\install.py", line 535, in _determine_conflicts
    return check_install_conflicts(to_install)
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\operations\check.py", line 108, in check_install_conflicts
    package_set, _ = create_package_set_from_installed()
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_internal\operations\check.py", line 50, in create_package_set_from_installed
    package_set[name] = PackageDetails(dist.version, dist.requires())
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2736, in requires
    dm = self._dep_map
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3023, in _dep_map
    self.__dep_map = self._compute_dependencies()
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3032, in _compute_dependencies
    for req in self._parsed_pkg_info.get_all('Requires-Dist') or []:
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3014, in _parsed_pkg_info
    metadata = self.get_metadata(self.PKG_INFO)
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1420, in get_metadata
    value = self._get(path)
  File "c:\users\elcot\appdata\local\programs\python\python38\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1616, in _get
    with open(path, 'rb') as stream:
PermissionError: [Errno 13] Permission denied: 'c:\\users\\elcot\\appdata\\roaming\\python\\python38\\site-packages\\astroid-2.4.2.dist-info\\METADATA'

The text was updated successfully, but these errors were encountered:

uranusjr · 2020-08-01T23:24:42Z

PermissionError: [Errno 13] Permission denied:
'c:\\users\\elcot\\appdata\\roaming\\python\\python38\\site-packages\\astroid-2.4.2.dist-info\\METADATA'

Are you able to open this file by hand in Notepad.exe (or any other editor)? It seems weird that this file cannot be read; this may be an environment issue, not a pip bug (although we should catch it and improve the error message).

uranusjr · 2020-08-02T09:47:51Z

I wonder why we’re suddenly seeing this in 20.2; there’s nothing new in the check operation AFAICT. Did something change in pkg_resources? Can this somehow be related to #8054?

deveshks · 2020-08-02T16:04:32Z

I wonder why we’re suddenly seeing this in 20.2; there’s nothing new in the check operation AFAICT. Did something change in pkg_resources? Can this somehow be related to #8054?

Hi @KishoreKumarRV ,

As per the above comment, could you also try installing pip from the latest master branch, (pip install https://github.com/pypa/pip/archive/master.zip) and see if that resolves the error.

There was a regression bug which might have been introduced by the above PR which was fixed by #8659, and could be the cause of this bug.

githubkuyaya · 2020-08-06T15:57:45Z

I get the same error too. I get it with basically any package, here I tried to install pyinstaller

PS C:\Users\user> pip install pyinstaller
Requirement already satisfied: pyinstaller in c:\users\user\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (3.6)
Requirement already satisfied: altgraph in c:\users\user\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from pyinstaller) (0.17)
Requirement already satisfied: pywin32-ctypes>=0.2.0 in c:\users\user\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from pyinstaller) (0.2.0)
Requirement already satisfied: setuptools in c:\program files\windowsapps\pythonsoftwarefoundation.python.3.8_3.8.1520.0_x64__qbz5n2kfra8p0\lib\site-packages (from pyinstaller) (47.1.0)
Requirement already satisfied: pefile>=2017.8.1 in c:\users\user\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from pyinstaller) (2019.4.18)
Requirement already satisfied: future in c:\users\user\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from pefile>=2017.8.1->pyinstaller) (0.18.2)
ERROR: Error while checking for conflicts. Please file an issue on pip's issue tracker: https://github.com/pypa/pip/issues/new
Traceback (most recent call last):
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3021, in _dep_map
    return self.__dep_map
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2815, in __getattr__
    raise AttributeError(attr)
AttributeError: _DistInfoDistribution__dep_map

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3012, in _parsed_pkg_info
    return self._pkg_info
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2815, in __getattr__
    raise AttributeError(attr)
AttributeError: _pkg_info

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_internal\commands\install.py", line 534, in _determine_conflicts
    return check_install_conflicts(to_install)
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_internal\operations\check.py", line 108, in check_install_conflicts
    package_set, _ = create_package_set_from_installed()
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_internal\operations\check.py", line 50, in create_package_set_from_installed
    package_set[name] = PackageDetails(dist.version, dist.requires())
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2736, in requires
    dm = self._dep_map
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3023, in _dep_map
    self.__dep_map = self._compute_dependencies()
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3032, in _compute_dependencies
    for req in self._parsed_pkg_info.get_all('Requires-Dist') or []:
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3014, in _parsed_pkg_info
    metadata = self.get_metadata(self.PKG_INFO)
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1420, in get_metadata
    value = self._get(path)
  File "C:\Users\user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1616, in _get
    with open(path, 'rb') as stream:
FileNotFoundError: [Errno 2] No such file or directory: 'c:\\users\\user\\appdata\\local\\packages\\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\\localcache\\local-packages\\python38\\site-packages\\pypykatz-0.3.12.dist-info\\METADATA

uranusjr · 2020-08-10T06:31:14Z

Are you able to open this file by hand in Notepad.exe (or any other editor)? It seems weird that this file cannot be read; this may be an environment issue, not a pip bug (although we should catch it and improve the error message).

Can anyone here saying you have this problem try to do this?

Adrianahuante · 2020-08-12T23:43:01Z

Hi @uranusjr

I have the same problem, this is my bug

C:\Users\ar_hv>pip install https://github.com/pypa/pip/archive/master.zip
Collecting https://github.com/pypa/pip/archive/master.zip
  Using cached https://github.com/pypa/pip/archive/master.zip
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
    Preparing wheel metadata ... done
Requirement already satisfied (use --upgrade to upgrade): pip==20.3.dev0 from https://github.com/pypa/pip/archive/master.zip in c:\users\ar_hv\anaconda3\lib\site-packages
Building wheels for collected packages: pip
  Building wheel for pip (PEP 517) ... done
  Created wheel for pip: filename=pip-20.3.dev0-py2.py3-none-any.whl size=1503758 sha256=01687db60f3b36becccc2fb2e5aaea14119f22e3e11f21249feb9a88d8b7a7c8
  Stored in directory: C:\Users\ar_hv\AppData\Local\Temp\pip-ephem-wheel-cache-wbew0v2i\wheels\b2\f0\ae\286fb76d950bd0a0d20bcabbda0f56531389ed5030f038f6b9
Successfully built pip
ERROR: Error while checking for conflicts. Please file an issue on pip's issue tracker: https://github.com/pypa/pip/issues/new
Traceback (most recent call last):
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3021, in _dep_map
    return self.__dep_map
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2815, in __getattr__
    raise AttributeError(attr)
AttributeError: _DistInfoDistribution__dep_map

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3012, in _parsed_pkg_info
    return self._pkg_info
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2815, in __getattr__
    raise AttributeError(attr)
AttributeError: _pkg_info

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_internal\commands\install.py", line 534, in _determine_conflicts
    return check_install_conflicts(to_install)
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_internal\operations\check.py", line 108, in check_install_conflicts
    package_set, _ = create_package_set_from_installed()
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_internal\operations\check.py", line 50, in create_package_set_from_installed
    package_set[name] = PackageDetails(dist.version, dist.requires())
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 2736, in requires
    dm = self._dep_map
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3023, in _dep_map
    self.__dep_map = self._compute_dependencies()
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3032, in _compute_dependencies
    for req in self._parsed_pkg_info.get_all('Requires-Dist') or []:
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 3014, in _parsed_pkg_info
    metadata = self.get_metadata(self.PKG_INFO)
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1420, in get_metadata
    value = self._get(path)
  File "c:\users\ar_hv\anaconda3\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1616, in _get
    with open(path, 'rb') as stream:
FileNotFoundError: [Errno 2] No such file or directory: 'c:\\users\\ar_hv\\anaconda3\\lib\\site-packages\\s3transfer-0.3.3.dist-info\\METADATA'

I tried opening the file by hand and realized that inside anaconda3 I don't have a folder named "lib" just one named "Lib". This is the path for the file C:\Users\ar_hv\anaconda3\Lib\site-packages\s3transfer-0.3.3.dist-info\metadata.json . I don't know if that's supposed to be the file but is the only one I found.

I appreciate your help

uranusjr · 2020-08-13T01:25:25Z

Case does not matter in Windows paths, so Lib and lib are equivalent. So you only have metadata.json, but not METADATA (no extension)?

githubkuyaya · 2020-08-13T09:44:35Z

Are you able to open this file by hand in Notepad.exe (or any other editor)? It seems weird that this file cannot be read; this may be an environment issue, not a pip bug (although we should catch it and improve the error message).

Can anyone here saying you have this problem try to do this?

Sorry, I've been on vacation. That file doesn't even exist in my case. The path only exists till "site-packages". It's probably not a pip error, it's my fault.

uranusjr · 2020-08-13T11:14:57Z

If @Adrianahuante’s observation is correct, this is probably pip’s fault, not yours (i.e. if pip correctly installs some files for the distribution but not all). I wonder if this has something to do with the change in 20.2 that wheels are now installed directly from the archive.

Adrianahuante · 2020-08-13T14:18:27Z

Yes @uranusjr , in that folder I have two files: DESCRIPTION.rst and metadata.json. I don't have the METADATA file (with no extention)

uranusjr · 2020-08-13T20:28:53Z

Hmm, that does look a lot like a wheel installation failed half-way. So there are three issues here:

pip should avoid this from happening. There is already a rollback feature that cleans files up if installation fails, so we need to investigate why it did not kick in for you.
Why does the installation fail? Wheel installation is simply ZIP extraction, and there’s very little chance it could fail unexpectedly. Tagging @chrahunt since you’re the one most familiar with the new implementation.
pip should be more resilient when this happens. There happens to be a discussion about making METADATA optional in .dist-info (for entirely unrelated reasons), and this would be a good chance to implement it. But the logic is in pkg_resources, and since upstream fixes probably won’t land soon (new setuptools is Python 3-only, pip is currently vendoring an old version of it), we’ll need to do vendor-patching.

Adrianahuante · 2020-08-13T21:05:38Z

I don't know what went wrong in the installation but I unistalled anaconda and installed it again. That solved the problem, although now I don't have the folder C:\Users\ar_hv\anaconda3\Lib\site-packages\s3transfer-0.3.3.dist-info

Thanks!

pradyunsg · 2020-08-31T03:17:58Z

To folks facing this issue, could you provide some context on how to reproduce this failure?

Does this require interrupting the installation in an earlier run to cause failures in subsequent runs?

pfmoore · 2020-10-08T08:25:56Z

It's fixed in #8926 which has now been merged to master. We close issues once a fix is in master, the fix will be available in the next release of pip.

ruperty · 2020-10-17T09:35:18Z

It's fixed in #8926 which has now been merged to master. We close issues once a fix is in master, the fix will be available in the next release of pip.

What does this mean? How do I get the fixed version of pip and install it?

pfmoore · 2020-10-17T09:41:38Z

What does this mean? How do I get the fixed version of pip and install it?

You can either wait for the next official release of pip, and upgrade when it's out, or you can install pip from github if you're comfortable doing that (python -m pip install --upgrade git+https://github.com/pypa/pip, but be aware that you are getting the "work in progress" unreleased version of pip).

pradyunsg · 2020-10-18T00:41:30Z

This is released as part of pip 20.2.4 now. Upgrading to the newest pip will include the fix.

192: Update pip to 20.2.4 r=duckinator a=pyup-bot This PR updates [pip](https://pypi.org/project/pip) from **20.2.3** to **20.2.4**. <details> <summary>Changelog</summary> ### 20.2.4 ``` =================== Deprecations and Removals ------------------------- - Document that certain removals can be fast tracked. (`8417 <https://github.com/pypa/pip/issues/8417>`_) - Document that Python versions are generally supported until PyPI usage falls below 5%. (`8927 <https://github.com/pypa/pip/issues/8927>`_) Features -------- - New resolver: Avoid accessing indexes when the installed candidate is preferred and considered good enough. (`8023 <https://github.com/pypa/pip/issues/8023>`_) - Improve error message friendliness when an environment has packages with corrupted metadata. (`8676 <https://github.com/pypa/pip/issues/8676>`_) - Cache package listings on index packages so they are guarenteed to stay stable during a pip command session. This also improves performance when a index page is accessed multiple times during the command session. (`8905 <https://github.com/pypa/pip/issues/8905>`_) - New resolver: Tweak resolution logic to improve user experience when user-supplied requirements conflict. (`8924 <https://github.com/pypa/pip/issues/8924>`_) Bug Fixes --------- - New resolver: Correctly respect ``Requires-Python`` metadata to reject incompatible packages in ``--no-deps`` mode. (`8758 <https://github.com/pypa/pip/issues/8758>`_) - New resolver: Pick up hash declarations in constraints files and use them to filter available distributions. (`8792 <https://github.com/pypa/pip/issues/8792>`_) - New resolver: If a package appears multiple times in user specification with different ``--hash`` options, only hashes that present in all specifications should be allowed. (`8839 <https://github.com/pypa/pip/issues/8839>`_) Improved Documentation ---------------------- - Add ux documentation (`8807 <https://github.com/pypa/pip/issues/8807>`_) ``` </details> <details> <summary>Links</summary> - PyPI: https://pypi.org/project/pip - Changelog: https://pyup.io/changelogs/pip/ - Homepage: https://pip.pypa.io/ </details> Co-authored-by: pyup-bot <github-bot@pyup.io>

KuldeepSangwan · 2020-10-29T17:35:57Z

I am still facing the same issue with newer pip(20.2.4)

C:\Users\singh>pip install tensorflow
Collecting tensorflow
Downloading tensorflow-2.3.1-cp36-cp36m-win_amd64.whl (342.5 MB)
|████████████████████████████████| 342.5 MB 1.7 MB/s
Requirement already satisfied: google-pasta>=0.1.8 in c:\python\python36\lib\site-packages (from tensorflow) (0.2.0)
Requirement already satisfied: absl-py>=0.7.0 in c:\python\python36\lib\site-packages (from tensorflow) (0.10.0)
Collecting tensorboard<3,>=2.3.0
Using cached tensorboard-2.3.0-py3-none-any.whl (6.8 MB)
Requirement already satisfied: wheel>=0.26 in c:\python\python36\lib\site-packages (from tensorflow) (0.35.1)
Requirement already satisfied: tensorflow-estimator<2.4.0,>=2.3.0 in c:\python\python36\lib\site-packages (from tensorflow) (2.3.0)
WARNING: No metadata found in c:\python\python36\lib\site-packages
ERROR: Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: 'c:\python\python36\lib\site-packages\tensorflow_estimator-2.3.0.dist-info\METADATA'

C:\Users\singh>pip --version
pip 20.2.4 from c:\python\python36\lib\site-packages\pip (python 3.6)

uranusjr · 2020-10-29T18:00:04Z

Please follow the recover instructions above.

pradyunsg · 2020-11-13T10:20:38Z

Are the folks hitting this issue also using conda?

195: Update pip to 20.3 r=duckinator a=pyup-bot This PR updates [pip](https://pypi.org/project/pip) from **20.2.4** to **20.3**. <details> <summary>Changelog</summary> ### 20.3 ``` - Introduce a new ResolutionImpossible error, raised when pip encounters un-satisfiable dependency conflicts (`8546 <https://github.com/pypa/pip/issues/8546>`_, `8377 <https://github.com/pypa/pip/issues/8377>`_) - Add a subcommand ``debug`` to ``pip config`` to list available configuration sources and the key-value pairs defined in them. (`6741 <https://github.com/pypa/pip/issues/6741>`_) - Warn if index pages have unexpected content-type (`6754 <https://github.com/pypa/pip/issues/6754>`_) - Allow specifying ``--prefer-binary`` option in a requirements file (`7693 <https://github.com/pypa/pip/issues/7693>`_) - Generate PEP 376 REQUESTED metadata for user supplied requirements installed by pip. (`7811 <https://github.com/pypa/pip/issues/7811>`_) - Warn if package url is a vcs or an archive url with invalid scheme (`8128 <https://github.com/pypa/pip/issues/8128>`_) - Parallelize network operations in ``pip list``. (`8504 <https://github.com/pypa/pip/issues/8504>`_) - Allow the new resolver to obtain dependency information through wheels lazily downloaded using HTTP range requests. To enable this feature, invoke ``pip`` with ``--use-feature=fast-deps``. (`8588 <https://github.com/pypa/pip/issues/8588>`_) - Support ``--use-feature`` in requirements files (`8601 <https://github.com/pypa/pip/issues/8601>`_) Bug Fixes --------- - Use canonical package names while looking up already installed packages. (`5021 <https://github.com/pypa/pip/issues/5021>`_) - Fix normalizing path on Windows when installing package on another logical disk. (`7625 <https://github.com/pypa/pip/issues/7625>`_) - The VCS commands run by pip as subprocesses don't merge stdout and stderr anymore, improving the output parsing by subsequent commands. (`7968 <https://github.com/pypa/pip/issues/7968>`_) - Correctly treat non-ASCII entry point declarations in wheels so they can be installed on Windows. (`8342 <https://github.com/pypa/pip/issues/8342>`_) - Update author email in config and tests to reflect decommissioning of pypa-dev list. (`8454 <https://github.com/pypa/pip/issues/8454>`_) - Headers provided by wheels in .data directories are now correctly installed into the user-provided locations, such as ``--prefix``, instead of the virtual environment pip is running in. (`8521 <https://github.com/pypa/pip/issues/8521>`_) Vendored Libraries ------------------ - Vendored htmlib5 no longer imports deprecated xml.etree.cElementTree on Python 3. - Upgrade appdirs to 1.4.4 - Upgrade certifi to 2020.6.20 - Upgrade distlib to 0.3.1 - Upgrade html5lib to 1.1 - Upgrade idna to 2.10 - Upgrade packaging to 20.4 - Upgrade requests to 2.24.0 - Upgrade six to 1.15.0 - Upgrade toml to 0.10.1 - Upgrade urllib3 to 1.25.9 Improved Documentation ---------------------- - Add ``--no-input`` option to pip docs (`7688 <https://github.com/pypa/pip/issues/7688>`_) - List of options supported in requirements file are extracted from source of truth, instead of being maintained manually. (`7908 <https://github.com/pypa/pip/issues/7908>`_) - Fix pip config docstring so that the subcommands render correctly in the docs (`8072 <https://github.com/pypa/pip/issues/8072>`_) - replace links to the old pypa-dev mailing list with https://mail.python.org/mailman3/lists/distutils-sig.python.org/ (`8353 <https://github.com/pypa/pip/issues/8353>`_) - Fix example for defining multiple values for options which support them (`8373 <https://github.com/pypa/pip/issues/8373>`_) - Add documentation for the ResolutionImpossible error that helps the user fix dependency conflicts (`8459 <https://github.com/pypa/pip/issues/8459>`_) - Add feature flags to docs (`8512 <https://github.com/pypa/pip/issues/8512>`_) - Document how to install package extras from git branch and source distributions. (`8576 <https://github.com/pypa/pip/issues/8576>`_) ``` ### 20.3b1 ``` =================== Deprecations and Removals ------------------------- - ``pip freeze`` will stop filtering the ``pip``, ``setuptools``, ``distribute`` and ``wheel`` packages from ``pip freeze`` output in a future version. To keep the previous behavior, users should use the new ``--exclude`` option. (`4256 <https://github.com/pypa/pip/issues/4256>`_) - Deprecate support for Python 3.5 (`8181 <https://github.com/pypa/pip/issues/8181>`_) - Document that certain removals can be fast tracked. (`8417 <https://github.com/pypa/pip/issues/8417>`_) - Document that Python versions are generally supported until PyPI usage falls below 5%. (`8927 <https://github.com/pypa/pip/issues/8927>`_) - Deprecate ``--find-links`` option in ``pip freeze`` (`9069 <https://github.com/pypa/pip/issues/9069>`_) Features -------- - Add ``--exclude`` option to ``pip freeze`` and ``pip list`` commands to explicitly exclude packages from the output. (`4256 <https://github.com/pypa/pip/issues/4256>`_) - Allow multiple values for --abi and --platform. (`6121 <https://github.com/pypa/pip/issues/6121>`_) - Add option ``--format`` to subcommand ``list`` of ``pip cache``, with ``abspath`` choice to output the full path of a wheel file. (`8355 <https://github.com/pypa/pip/issues/8355>`_) - Improve error message friendliness when an environment has packages with corrupted metadata. (`8676 <https://github.com/pypa/pip/issues/8676>`_) - Make the ``setup.py install`` deprecation warning less noisy. We warn only when ``setup.py install`` succeeded and ``setup.py bdist_wheel`` failed, as situations where both fails are most probably irrelevant to this deprecation. (`8752 <https://github.com/pypa/pip/issues/8752>`_) - Check the download directory for existing wheels to possibly avoid fetching metadata when the ``fast-deps`` feature is used with ``pip wheel`` and ``pip download``. (`8804 <https://github.com/pypa/pip/issues/8804>`_) - When installing a git URL that refers to a commit that is not available locally after git clone, attempt to fetch it from the remote. (`8815 <https://github.com/pypa/pip/issues/8815>`_) - Include http subdirectory in ``pip cache info`` and ``pip cache purge`` commands. (`8892 <https://github.com/pypa/pip/issues/8892>`_) - Cache package listings on index packages so they are guarenteed to stay stable during a pip command session. This also improves performance when a index page is accessed multiple times during the command session. (`8905 <https://github.com/pypa/pip/issues/8905>`_) - New resolver: Tweak resolution logic to improve user experience when user-supplied requirements conflict. (`8924 <https://github.com/pypa/pip/issues/8924>`_) - Support Python 3.9. (`8971 <https://github.com/pypa/pip/issues/8971>`_) - Log an informational message when backtracking takes multiple rounds on a specific package. (`8975 <https://github.com/pypa/pip/issues/8975>`_) - Switch to the new dependency resolver by default. (`9019 <https://github.com/pypa/pip/issues/9019>`_) - Remove the ``--build-dir`` option, as per the deprecation. (`9049 <https://github.com/pypa/pip/issues/9049>`_) Bug Fixes --------- - Propagate ``--extra-index-url`` from requirements file properly to session auth, so that keyring auth will work as expected. (`8103 <https://github.com/pypa/pip/issues/8103>`_) - Allow specifying verbosity and quiet level via configuration files and environment variables. Previously these options were treated as boolean values when read from there while through CLI the level can be specified. (`8578 <https://github.com/pypa/pip/issues/8578>`_) - Only converts Windows path to unicode on Python 2 to avoid regressions when a POSIX environment does not configure the file system encoding correctly. (`8658 <https://github.com/pypa/pip/issues/8658>`_) - List downloaded distributions before exiting ``pip download`` when using the new resolver to make the behavior the same as that on the legacy resolver. (`8696 <https://github.com/pypa/pip/issues/8696>`_) - New resolver: Pick up hash declarations in constraints files and use them to filter available distributions. (`8792 <https://github.com/pypa/pip/issues/8792>`_) - Avoid polluting the destination directory by resolution artifacts when the new resolver is used for ``pip download`` or ``pip wheel``. (`8827 <https://github.com/pypa/pip/issues/8827>`_) - New resolver: If a package appears multiple times in user specification with different ``--hash`` options, only hashes that present in all specifications should be allowed. (`8839 <https://github.com/pypa/pip/issues/8839>`_) - Tweak the output during dependency resolution in the new resolver. (`8861 <https://github.com/pypa/pip/issues/8861>`_) - Correctly search for installed distributions in new resolver logic in order to not miss packages (virtualenv packages from system-wide-packages for example) (`8963 <https://github.com/pypa/pip/issues/8963>`_) - Do not fail in pip freeze when encountering a ``direct_url.json`` metadata file with editable=True. Render it as a non-editable ``file://`` URL until modern editable installs are standardized and supported. (`8996 <https://github.com/pypa/pip/issues/8996>`_) Vendored Libraries ------------------ - Fix devendoring instructions to explicitly state that ``vendor.txt`` should not be removed. It is mandatory for ``pip debug`` command. Improved Documentation ---------------------- - Add documentation for '.netrc' support. (`7231 <https://github.com/pypa/pip/issues/7231>`_) - Add OS tabs for OS-specific commands. (`7311 <https://github.com/pypa/pip/issues/7311>`_) - Add note and example on keyring support for index basic-auth (`8636 <https://github.com/pypa/pip/issues/8636>`_) - Added initial UX feedback widgets to docs. (`8783 <https://github.com/pypa/pip/issues/8783>`_, `8848 <https://github.com/pypa/pip/issues/8848>`_) - Add ux documentation (`8807 <https://github.com/pypa/pip/issues/8807>`_) - Update user docs to reflect new resolver as default in 20.3. (`9044 <https://github.com/pypa/pip/issues/9044>`_) - Improve migration guide to reflect changes in new resolver behavior. (`9056 <https://github.com/pypa/pip/issues/9056>`_) ``` </details> <details> <summary>Links</summary> - PyPI: https://pypi.org/project/pip - Changelog: https://pyup.io/changelogs/pip/ - Homepage: https://pip.pypa.io/ </details> Co-authored-by: pyup-bot <github-bot@pyup.io>

194: Update pytest-pylint to 0.18.0 r=duckinator a=pyup-bot This PR updates [pytest-pylint](https://pypi.org/project/pytest-pylint) from **0.17.0** to **0.18.0**. *The bot wasn't able to find a changelog for this release. [Got an idea?](https://github.com/pyupio/changelogs/issues/new)* <details> <summary>Links</summary> - PyPI: https://pypi.org/project/pytest-pylint - Changelog: https://pyup.io/changelogs/pytest-pylint/ - Repo: https://github.com/carsongee/pytest-pylint </details> 197: Update pip to 20.3.1 r=duckinator a=pyup-bot This PR updates [pip](https://pypi.org/project/pip) from **20.2.4** to **20.3.1**. <details> <summary>Changelog</summary> ### 20.3.1 ``` =================== Deprecations and Removals ------------------------- - The --build-dir option has been restored as a no-op, to soften the transition for tools that still used it. (`9193 <https://github.com/pypa/pip/issues/9193>`_) ``` ### 20.3 ``` - Introduce a new ResolutionImpossible error, raised when pip encounters un-satisfiable dependency conflicts (`8546 <https://github.com/pypa/pip/issues/8546>`_, `8377 <https://github.com/pypa/pip/issues/8377>`_) - Add a subcommand ``debug`` to ``pip config`` to list available configuration sources and the key-value pairs defined in them. (`6741 <https://github.com/pypa/pip/issues/6741>`_) - Warn if index pages have unexpected content-type (`6754 <https://github.com/pypa/pip/issues/6754>`_) - Allow specifying ``--prefer-binary`` option in a requirements file (`7693 <https://github.com/pypa/pip/issues/7693>`_) - Generate PEP 376 REQUESTED metadata for user supplied requirements installed by pip. (`7811 <https://github.com/pypa/pip/issues/7811>`_) - Warn if package url is a vcs or an archive url with invalid scheme (`8128 <https://github.com/pypa/pip/issues/8128>`_) - Parallelize network operations in ``pip list``. (`8504 <https://github.com/pypa/pip/issues/8504>`_) - Allow the new resolver to obtain dependency information through wheels lazily downloaded using HTTP range requests. To enable this feature, invoke ``pip`` with ``--use-feature=fast-deps``. (`8588 <https://github.com/pypa/pip/issues/8588>`_) - Support ``--use-feature`` in requirements files (`8601 <https://github.com/pypa/pip/issues/8601>`_) Bug Fixes --------- - Use canonical package names while looking up already installed packages. (`5021 <https://github.com/pypa/pip/issues/5021>`_) - Fix normalizing path on Windows when installing package on another logical disk. (`7625 <https://github.com/pypa/pip/issues/7625>`_) - The VCS commands run by pip as subprocesses don't merge stdout and stderr anymore, improving the output parsing by subsequent commands. (`7968 <https://github.com/pypa/pip/issues/7968>`_) - Correctly treat non-ASCII entry point declarations in wheels so they can be installed on Windows. (`8342 <https://github.com/pypa/pip/issues/8342>`_) - Update author email in config and tests to reflect decommissioning of pypa-dev list. (`8454 <https://github.com/pypa/pip/issues/8454>`_) - Headers provided by wheels in .data directories are now correctly installed into the user-provided locations, such as ``--prefix``, instead of the virtual environment pip is running in. (`8521 <https://github.com/pypa/pip/issues/8521>`_) Vendored Libraries ------------------ - Vendored htmlib5 no longer imports deprecated xml.etree.cElementTree on Python 3. - Upgrade appdirs to 1.4.4 - Upgrade certifi to 2020.6.20 - Upgrade distlib to 0.3.1 - Upgrade html5lib to 1.1 - Upgrade idna to 2.10 - Upgrade packaging to 20.4 - Upgrade requests to 2.24.0 - Upgrade six to 1.15.0 - Upgrade toml to 0.10.1 - Upgrade urllib3 to 1.25.9 Improved Documentation ---------------------- - Add ``--no-input`` option to pip docs (`7688 <https://github.com/pypa/pip/issues/7688>`_) - List of options supported in requirements file are extracted from source of truth, instead of being maintained manually. (`7908 <https://github.com/pypa/pip/issues/7908>`_) - Fix pip config docstring so that the subcommands render correctly in the docs (`8072 <https://github.com/pypa/pip/issues/8072>`_) - replace links to the old pypa-dev mailing list with https://mail.python.org/mailman3/lists/distutils-sig.python.org/ (`8353 <https://github.com/pypa/pip/issues/8353>`_) - Fix example for defining multiple values for options which support them (`8373 <https://github.com/pypa/pip/issues/8373>`_) - Add documentation for the ResolutionImpossible error that helps the user fix dependency conflicts (`8459 <https://github.com/pypa/pip/issues/8459>`_) - Add feature flags to docs (`8512 <https://github.com/pypa/pip/issues/8512>`_) - Document how to install package extras from git branch and source distributions. (`8576 <https://github.com/pypa/pip/issues/8576>`_) ``` ### 20.3b1 ``` =================== Deprecations and Removals ------------------------- - ``pip freeze`` will stop filtering the ``pip``, ``setuptools``, ``distribute`` and ``wheel`` packages from ``pip freeze`` output in a future version. To keep the previous behavior, users should use the new ``--exclude`` option. (`4256 <https://github.com/pypa/pip/issues/4256>`_) - Deprecate support for Python 3.5 (`8181 <https://github.com/pypa/pip/issues/8181>`_) - Document that certain removals can be fast tracked. (`8417 <https://github.com/pypa/pip/issues/8417>`_) - Document that Python versions are generally supported until PyPI usage falls below 5%. (`8927 <https://github.com/pypa/pip/issues/8927>`_) - Deprecate ``--find-links`` option in ``pip freeze`` (`9069 <https://github.com/pypa/pip/issues/9069>`_) Features -------- - Add ``--exclude`` option to ``pip freeze`` and ``pip list`` commands to explicitly exclude packages from the output. (`4256 <https://github.com/pypa/pip/issues/4256>`_) - Allow multiple values for --abi and --platform. (`6121 <https://github.com/pypa/pip/issues/6121>`_) - Add option ``--format`` to subcommand ``list`` of ``pip cache``, with ``abspath`` choice to output the full path of a wheel file. (`8355 <https://github.com/pypa/pip/issues/8355>`_) - Improve error message friendliness when an environment has packages with corrupted metadata. (`8676 <https://github.com/pypa/pip/issues/8676>`_) - Make the ``setup.py install`` deprecation warning less noisy. We warn only when ``setup.py install`` succeeded and ``setup.py bdist_wheel`` failed, as situations where both fails are most probably irrelevant to this deprecation. (`8752 <https://github.com/pypa/pip/issues/8752>`_) - Check the download directory for existing wheels to possibly avoid fetching metadata when the ``fast-deps`` feature is used with ``pip wheel`` and ``pip download``. (`8804 <https://github.com/pypa/pip/issues/8804>`_) - When installing a git URL that refers to a commit that is not available locally after git clone, attempt to fetch it from the remote. (`8815 <https://github.com/pypa/pip/issues/8815>`_) - Include http subdirectory in ``pip cache info`` and ``pip cache purge`` commands. (`8892 <https://github.com/pypa/pip/issues/8892>`_) - Cache package listings on index packages so they are guarenteed to stay stable during a pip command session. This also improves performance when a index page is accessed multiple times during the command session. (`8905 <https://github.com/pypa/pip/issues/8905>`_) - New resolver: Tweak resolution logic to improve user experience when user-supplied requirements conflict. (`8924 <https://github.com/pypa/pip/issues/8924>`_) - Support Python 3.9. (`8971 <https://github.com/pypa/pip/issues/8971>`_) - Log an informational message when backtracking takes multiple rounds on a specific package. (`8975 <https://github.com/pypa/pip/issues/8975>`_) - Switch to the new dependency resolver by default. (`9019 <https://github.com/pypa/pip/issues/9019>`_) - Remove the ``--build-dir`` option, as per the deprecation. (`9049 <https://github.com/pypa/pip/issues/9049>`_) Bug Fixes --------- - Propagate ``--extra-index-url`` from requirements file properly to session auth, so that keyring auth will work as expected. (`8103 <https://github.com/pypa/pip/issues/8103>`_) - Allow specifying verbosity and quiet level via configuration files and environment variables. Previously these options were treated as boolean values when read from there while through CLI the level can be specified. (`8578 <https://github.com/pypa/pip/issues/8578>`_) - Only converts Windows path to unicode on Python 2 to avoid regressions when a POSIX environment does not configure the file system encoding correctly. (`8658 <https://github.com/pypa/pip/issues/8658>`_) - List downloaded distributions before exiting ``pip download`` when using the new resolver to make the behavior the same as that on the legacy resolver. (`8696 <https://github.com/pypa/pip/issues/8696>`_) - New resolver: Pick up hash declarations in constraints files and use them to filter available distributions. (`8792 <https://github.com/pypa/pip/issues/8792>`_) - Avoid polluting the destination directory by resolution artifacts when the new resolver is used for ``pip download`` or ``pip wheel``. (`8827 <https://github.com/pypa/pip/issues/8827>`_) - New resolver: If a package appears multiple times in user specification with different ``--hash`` options, only hashes that present in all specifications should be allowed. (`8839 <https://github.com/pypa/pip/issues/8839>`_) - Tweak the output during dependency resolution in the new resolver. (`8861 <https://github.com/pypa/pip/issues/8861>`_) - Correctly search for installed distributions in new resolver logic in order to not miss packages (virtualenv packages from system-wide-packages for example) (`8963 <https://github.com/pypa/pip/issues/8963>`_) - Do not fail in pip freeze when encountering a ``direct_url.json`` metadata file with editable=True. Render it as a non-editable ``file://`` URL until modern editable installs are standardized and supported. (`8996 <https://github.com/pypa/pip/issues/8996>`_) Vendored Libraries ------------------ - Fix devendoring instructions to explicitly state that ``vendor.txt`` should not be removed. It is mandatory for ``pip debug`` command. Improved Documentation ---------------------- - Add documentation for '.netrc' support. (`7231 <https://github.com/pypa/pip/issues/7231>`_) - Add OS tabs for OS-specific commands. (`7311 <https://github.com/pypa/pip/issues/7311>`_) - Add note and example on keyring support for index basic-auth (`8636 <https://github.com/pypa/pip/issues/8636>`_) - Added initial UX feedback widgets to docs. (`8783 <https://github.com/pypa/pip/issues/8783>`_, `8848 <https://github.com/pypa/pip/issues/8848>`_) - Add ux documentation (`8807 <https://github.com/pypa/pip/issues/8807>`_) - Update user docs to reflect new resolver as default in 20.3. (`9044 <https://github.com/pypa/pip/issues/9044>`_) - Improve migration guide to reflect changes in new resolver behavior. (`9056 <https://github.com/pypa/pip/issues/9056>`_) ``` </details> <details> <summary>Links</summary> - PyPI: https://pypi.org/project/pip - Changelog: https://pyup.io/changelogs/pip/ - Homepage: https://pip.pypa.io/ </details> Co-authored-by: pyup-bot <github-bot@pyup.io> Co-authored-by: Ellen Marie Dash <me@duckie.co>

luchaoqi · 2021-01-12T07:22:02Z

It's 2021, I'm having the same problem. I have tried both pip and conda but didn't get lots of luck.

uranusjr · 2021-02-25T13:44:39Z

Please voice your concern in conda/conda#10357 if you are getting this as a conda user. This will help conda correctly assess the severity of the issue; right now there are only like five people participating in the issue, which indicates the issue is vastly underrepresenting the affected people and unlikely to help the issue fixed.

pradyunsg added kind: crash For situations where pip crashes S: awaiting response Waiting for a response/more information labels Aug 2, 2020

uranusjr mentioned this issue Aug 2, 2020

pip install ERROR : Error while checking for conflicts #8680

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This was referenced Aug 7, 2020

While installing tensorflow-gpu, got error message that told me to open an issue ticket. #8729

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Error while checking for conflicts during Python 3.8.5 installation #8741

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uranusjr removed the S: awaiting response Waiting for a response/more information label Aug 14, 2020

This was referenced Aug 18, 2020

pip error while installing pydicom #8776

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error installation botocore #8782

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Error while checking for conflicts. #8786

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Error while installation of Huggingface Tranformers #8798

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uranusjr mentioned this issue Aug 27, 2020

For every package installation getting same error #8811

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uranusjr added the type: bug A confirmed bug or unintended behavior label Aug 27, 2020

pradyunsg added the state: needs eyes Needs a maintainer/triager to take a closer look label Aug 27, 2020

uranusjr mentioned this issue Aug 28, 2020

ERROR: Could not install packages due to an EnvironmentError: [Errno 2] when installing or removing packages #8814

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uranusjr changed the title ~~ERROR: Error while checking for conflicts. Please file an issue on pip's issue tracker~~ pip crashes because pkg_resources cannot read file 'METADATA' Aug 28, 2020

uranusjr mentioned this issue Oct 16, 2020

ERROR: Error while checking for conflicts. #9003

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uranusjr mentioned this issue Oct 17, 2020

Not able to load networkx library #9004

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pradyunsg removed the state: needs eyes Needs a maintainer/triager to take a closer look label Oct 18, 2020

pradyunsg unpinned this issue Oct 26, 2020

uranusjr mentioned this issue Oct 27, 2020

Got an error while running pip install #9062

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uranusjr mentioned this issue Nov 13, 2020

pip breaks when pip installs and conda uninstalls the same package #9129

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pradyunsg mentioned this issue Nov 13, 2020

conda doesn't correctly uninstalls packages installed by pip conda/conda#10357

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uranusjr mentioned this issue Dec 7, 2020

Error while checking for conflicts #9236

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AttributeError: _DistInfoDistribution__dep_map #9313

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Pip Conflict Error - Conda and ib_insync #9431

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uranusjr mentioned this issue Feb 26, 2021

IOError: [Errno 2] No such file or directory: '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy-1.16.6.dist-info/METADATA' #9622

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pip3 install docker exception AttributeError: _DistInfoDistribution__dep_map Fedora 34 #10561

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