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ionelmc / cookiecutter-pylibrary

Enhanced cookiecutter template for Python libraries.
BSD 2-Clause "Simplified" License
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Fix PyPy BackendUnavailable crash on Travis. #204

Closed dHannasch closed 4 years ago

dHannasch commented 4 years ago

This does not fix the BackendUnavailable error after all.

pypy3 create: /home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3
pypy3 installdeps: pytest, pytest-travis-fold, pytest-cov
pypy3 inst: /home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/.tmp/package/1/nameless-1.0.0.zip
ERROR: invocation failed (exit code 2), logfile: /home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/log/pypy3-2.log
================================== log start ===================================
Looking in links: file:///home/travis/.pip/wheels
Processing ./.tox/.tmp/package/1/nameless-1.0.0.zip
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'done'
ERROR: Exception:
Traceback (most recent call last):
  File "/home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/site-packages/pip/_internal/cli/base_command.py", line 188, in main
    status = self.run(options, args)
  File "/home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/site-packages/pip/_internal/commands/install.py", line 345, in run
    resolver.resolve(requirement_set)
  File "/home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/site-packages/pip/_internal/legacy_resolve.py", line 196, in resolve
    self._resolve_one(requirement_set, req)
  File "/home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/site-packages/pip/_internal/legacy_resolve.py", line 359, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/site-packages/pip/_internal/legacy_resolve.py", line 307, in _get_abstract_dist_for
    self.require_hashes
  File "/home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/site-packages/pip/_internal/operations/prepare.py", line 215, in prepare_linked_requirement
    finder, self.build_isolation,
  File "/home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/site-packages/pip/_internal/distributions/source.py", line 70, in prepare_distribution_metadata
    reqs = self.req.pep517_backend.get_requires_for_build_wheel()
  File "/home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/site-packages/pip/_vendor/pep517/wrappers.py", line 71, in get_requires_for_build_wheel
    'config_settings': config_settings
  File "/home/travis/build/ionelmc/cookiecutter-pylibrary/python-nameless/.tox/pypy3/site-packages/pip/_vendor/pep517/wrappers.py", line 162, in _call_hook
    raise BackendUnavailable
pip._vendor.pep517.wrappers.BackendUnavailable

It looks like the error is actually related to https://github.com/pypa/setuptools/issues/1644, maybe.

It looks like a nontrivial pyproject.toml might simply not work with PyPy: https://github.com/pypa/pep517/issues/74