--no-binary :all: -> ModuleNotFoundError: No module named 'poetry_core'

[altendky]

• I am on the latest Pendulum version.
• I have searched the issues of this repo and believe that this is not a duplicate.

• OS version and name: Ubuntu 19.10 eoan
• Pendulum version: 2.1.0

Issue

This is a distinctly different error but it strikes me as likely a good thing to consider while looking at #454. In short, installing with --no-binary :all: doesn't work.

First the working installation allowing for wheels.

altendky@p1:~/repos/poetry/t$ rm -rf venv; virtualenv -p python3.8 venv; venv/bin/pip install --no-cache-dir --upgrade pip setuptools; venv/bin/pip install --no-cache-dir pendulum
created virtual environment CPython3.8.2.final.0-64 in 104ms
  creator CPython3Posix(dest=/home/altendky/repos/poetry/t/venv, clear=False, global=False)
  seeder FromAppData(download=False, pip=latest, setuptools=latest, wheel=latest, via=copy, app_data_dir=/home/altendky/.local/share/virtualenv/seed-app-data/v1)
  activators BashActivator,CShellActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator
Requirement already up-to-date: pip in ./venv/lib/python3.8/site-packages (20.0.2)
Collecting setuptools
  Downloading setuptools-46.1.3-py3-none-any.whl (582 kB)
     |████████████████████████████████| 582 kB 1.1 MB/s 
Installing collected packages: setuptools
  Attempting uninstall: setuptools
    Found existing installation: setuptools 45.2.0
    Uninstalling setuptools-45.2.0:
      Successfully uninstalled setuptools-45.2.0
Successfully installed setuptools-46.1.3
Collecting pendulum
  Downloading pendulum-2.1.0-cp38-cp38-manylinux1_x86_64.whl (153 kB)
     |████████████████████████████████| 153 kB 1.2 MB/s 
Collecting python-dateutil<3.0,>=2.6
  Downloading python_dateutil-2.8.1-py2.py3-none-any.whl (227 kB)
     |████████████████████████████████| 227 kB 22.3 MB/s 
Collecting pytzdata>=2018.3
  Downloading pytzdata-2019.3-py2.py3-none-any.whl (489 kB)
     |████████████████████████████████| 489 kB 12.0 MB/s 
Collecting six>=1.5
  Downloading six-1.14.0-py2.py3-none-any.whl (10 kB)
Installing collected packages: six, python-dateutil, pytzdata, pendulum
Successfully installed pendulum-2.1.0 python-dateutil-2.8.1 pytzdata-2019.3 six-1.14.0
altendky@p1:~/repos/poetry/t$ rm -rf venv; virtualenv -p python3.8 venv; venv/bin/pip install --no-cache-dir --upgrade pip setuptools; venv/bin/pip install --no-cache-dir --no-binary :all: pendulum
created virtual environment CPython3.8.2.final.0-64 in 106ms
  creator CPython3Posix(dest=/home/altendky/repos/poetry/t/venv, clear=False, global=False)
  seeder FromAppData(download=False, pip=latest, setuptools=latest, wheel=latest, via=copy, app_data_dir=/home/altendky/.local/share/virtualenv/seed-app-data/v1)
  activators BashActivator,CShellActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator
Requirement already up-to-date: pip in ./venv/lib/python3.8/site-packages (20.0.2)
Collecting setuptools
  Downloading setuptools-46.1.3-py3-none-any.whl (582 kB)
     |████████████████████████████████| 582 kB 1.1 MB/s 
Installing collected packages: setuptools
  Attempting uninstall: setuptools
    Found existing installation: setuptools 45.2.0
    Uninstalling setuptools-45.2.0:
      Successfully uninstalled setuptools-45.2.0
Successfully installed setuptools-46.1.3
Collecting pendulum
  Downloading pendulum-2.1.0.tar.gz (80 kB)
     |████████████████████████████████| 80 kB 1.2 MB/s 
  Installing build dependencies ... error
  ERROR: Command errored out with exit status 2:
   command: /home/altendky/repos/poetry/t/venv/bin/python

Now without wheels (--no-binary :all:) we fail with ModuleNotFoundError: No module named 'poetry_core'.

/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-b3s0g3l7/overlay --no-warn-script-location --no-binary :all: --only-binary :none: -i https://pypi.org/simple -- 'poetry>=1.0.0b1'
       cwd: None
  Complete output (70 lines):
  Collecting poetry>=1.0.0b1
    Using cached poetry-1.1.0a1.tar.gz (107 kB)
    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'
      Preparing wheel metadata: started
      Preparing wheel metadata: finished with status 'done'
  Collecting pexpect<5.0.0,>=4.7.0
    Using cached pexpect-4.8.0.tar.gz (157 kB)
  Collecting html5lib<2.0,>=1.0
    Using cached html5lib-1.0.1.tar.gz (252 kB)
  Collecting clikit<0.6.0,>=0.5.1
    Using cached clikit-0.5.1.tar.gz (54 kB)
    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'
      Preparing wheel metadata: started
      Preparing wheel metadata: finished with status 'done'
  Collecting cachecontrol[filecache]<0.13.0,>=0.12.4
    Using cached CacheControl-0.12.6.tar.gz (14 kB)
  Collecting cleo<0.9.0,>=0.8.0
    Using cached cleo-0.8.0.tar.gz (19 kB)
    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/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_internal/cli/base_command.py", line 186, in _main
      status = self.run(options, args)
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_internal/commands/install.py", line 331, in run
      resolver.resolve(requirement_set)
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 177, in resolve
      discovered_reqs.extend(self._resolve_one(requirement_set, req))
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 333, in _resolve_one
      abstract_dist = self._get_abstract_dist_for(req_to_install)
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_internal/legacy_resolve.py", line 282, in _get_abstract_dist_for
      abstract_dist = self.preparer.prepare_linked_requirement(req)
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_internal/operations/prepare.py", line 515, in prepare_linked_requirement
      abstract_dist = _get_prepared_distribution(
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_internal/operations/prepare.py", line 95, in _get_prepared_distribution
      abstract_dist.prepare_distribution_metadata(finder, build_isolation)
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_internal/distributions/sdist.py", line 38, in prepare_distribution_metadata
      self._setup_isolation(finder)
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_internal/distributions/sdist.py", line 96, in _setup_isolation
      reqs = backend.get_requires_for_build_wheel()
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_vendor/pep517/wrappers.py", line 151, in get_requires_for_build_wheel
      return self._call_hook('get_requires_for_build_wheel', {
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_vendor/pep517/wrappers.py", line 255, in _call_hook
      raise BackendUnavailable(data.get('traceback', ''))
  pip._vendor.pep517.wrappers.BackendUnavailable: Traceback (most recent call last):
    File "/home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py", line 63, in _build_backend
      obj = import_module(mod_path)
    File "/home/altendky/.pyenv/versions/3.8.2/lib/python3.8/importlib/__init__.py", line 127, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
    File "<frozen importlib._bootstrap>", line 991, in _find_and_load
    File "<frozen importlib._bootstrap>", line 961, in _find_and_load_unlocked
    File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
    File "<frozen importlib._bootstrap>", line 991, in _find_and_load
    File "<frozen importlib._bootstrap>", line 961, in _find_and_load_unlocked
    File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
    File "<frozen importlib._bootstrap>", line 991, in _find_and_load
    File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked
  ModuleNotFoundError: No module named 'poetry_core'
  
  ----------------------------------------
ERROR: Command errored out with exit status 2: /home/altendky/repos/poetry/t/venv/bin/python /home/altendky/repos/poetry/t/venv/lib/python3.8/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-b3s0g3l7/overlay --no-warn-script-location --no-binary :all: --only-binary :none: -i https://pypi.org/simple -- 'poetry>=1.0.0b1' Check the logs for full command output.