AssertionError: Set as part of preparation during download

[engineerpassion]

Description

Error while checking conflicts during package installations.

#9 415.6 ERROR: Error while checking for conflicts. Please file an issue on pip's issue tracker: https:/pypa/pip/issues/new
#9 415.6 Traceback (most recent call last):
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/commands/install.py", line 575, in _determine_conflicts
#9 415.6     return check_install_conflicts(to_install)
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/operations/check.py", line 108, in check_install_conflicts
#9 415.6     would_be_installed = _simulate_installation_of(to_install, package_set)
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/operations/check.py", line 131, in _simulate_installation_of
#9 415.6     dist = abstract_dist.get_metadata_distribution()
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/distributions/wheel.py", line 23, in get_metadata_distribution
#9 415.6     assert self.req.local_file_path, "Set as part of preparation during download"
#9 415.6 AssertionError: Set as part of preparation during download

Expected behavior

The installation to pass successfully.

pip version

23.2

Python version

3.10

OS

CentOS

How to Reproduce

It fails while building wheels from a package that has source distribution.

Output

#9 415.6 ERROR: Error while checking for conflicts. Please file an issue on pip's issue tracker: https:/pypa/pip/issues/new
#9 415.6 Traceback (most recent call last):
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/commands/install.py", line 575, in _determine_conflicts
#9 415.6     return check_install_conflicts(to_install)
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/operations/check.py", line 108, in check_install_conflicts
#9 415.6     would_be_installed = _simulate_installation_of(to_install, package_set)
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/operations/check.py", line 131, in _simulate_installation_of
#9 415.6     dist = abstract_dist.get_metadata_distribution()
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/distributions/wheel.py", line 23, in get_metadata_distribution
#9 415.6     assert self.req.local_file_path, "Set as part of preparation during download"
#9 415.6 AssertionError: Set as part of preparation during download

#9 415.6 ERROR: Exception:
#9 415.6 Traceback (most recent call last):
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/cli/base_command.py", line 180, in exc_logging_wrapper
#9 415.6     status = run_func(*args)
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/cli/req_command.py", line 248, in wrapper
#9 415.6     return func(self, options, args)
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/commands/install.py", line 452, in run
#9 415.6     installed = install_given_reqs(
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/req/__init__.py", line 72, in install_given_reqs
#9 415.6     requirement.install(
#9 415.6   File "/usr/lib/python3.10/site-packages/pip/_internal/req/req_install.py", line 805, in install
#9 415.6     assert self.local_file_path
#9 415.6 AssertionError

Code of Conduct

• I agree to follow the PSF Code of Conduct.

[pfmoore]

Please provide a way of reproducing this, including the full command line and the package(s) involved.

If you are using the legacy resolver, please confirm if using the standard resolver fixes the issue - there is a known issue with the legacy resolver.

[sodul]

I got the same error. Unfortunately I cannot share details of packages involved publicly.

This is on macOS Ventura, M1 CPU, pip 23.2 and Python 3.11.4.

The command was:

python3 -m pip -q --cache-dir=/tmp/cache install --use-deprecated=legacy-resolver -r requirements.txt

ERROR: Error while checking for conflicts. Please file an issue on pip's issue tracker: https:/pypa/pip/issues/new
Traceback (most recent call last):
  File "/Users/stephane/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pip/_internal/commands/install.py", line 575, in _determine_conflicts
    return check_install_conflicts(to_install)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/stephane/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pip/_internal/operations/check.py", line 108, in check_install_conflicts
    would_be_installed = _simulate_installation_of(to_install, package_set)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/stephane/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pip/_internal/operations/check.py", line 131, in _simulate_installation_of
    dist = abstract_dist.get_metadata_distribution()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/stephane/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pip/_internal/distributions/wheel.py", line 23, in get_metadata_distribution
    assert self.req.local_file_path, "Set as part of preparation during download"
AssertionError: Set as part of preparation during download
ERROR: Exception:
Traceback (most recent call last):
  File "/Users/stephane/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pip/_internal/cli/base_command.py", line 180, in exc_logging_wrapper
    status = run_func(*args)
             ^^^^^^^^^^^^^^^
  File "/Users/stephane/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pip/_internal/cli/req_command.py", line 248, in wrapper
    return func(self, options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/stephane/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pip/_internal/commands/install.py", line 452, in run
    installed = install_given_reqs(
                ^^^^^^^^^^^^^^^^^^^
  File "/Users/stephane/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pip/_internal/req/__init__.py", line 72, in install_given_reqs
    requirement.install(
  File "/Users/stephane/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pip/_internal/req/req_install.py", line 805, in install
    assert self.local_file_path
AssertionError

[uranusjr]

Duplicate of #12156