Adding a package with the same name as your local package results in an AssertionError

Yes, this is my own stupid fault 😃 Maybe a sanity check somewhere could be helpful?

The local pyproject.toml file specifies ‘kek.tilde’ and the one in the git repo does as well. Then the following trace happens.

$ poetry add kek.tilde --git https://gitlab.com/snuk/kek.tilde.git -v
Using virtualenv: /Users/roel/Library/Caches/pypoetry/virtualenvs/kek.tilde-py3.6

Updating dependencies
Resolving dependencies... (0.0s)

[AssertionError]

Exception trace:
 /usr/local/lib/python3.6/site-packages/poetry/_vendor/cleo/application.py in run() at line 94
   status_code = self.do_run(input_, output_)
 /usr/local/lib/python3.6/site-packages/poetry/console/application.py in do_run() at line 87
   return super(Application, self).do_run(i, o)
 /usr/local/lib/python3.6/site-packages/poetry/_vendor/cleo/application.py in do_run() at line 197
   status_code = command.run(input_, output_)
 /usr/local/lib/python3.6/site-packages/poetry/console/commands/command.py in run() at line 72
   return super(BaseCommand, self).run(i, o)
 /usr/local/lib/python3.6/site-packages/poetry/_vendor/cleo/commands/base_command.py in run() at line 146
   status_code = self.execute(input_, output_)
 /usr/local/lib/python3.6/site-packages/poetry/_vendor/cleo/commands/command.py in execute() at line 107
   return self.handle()
 /usr/local/lib/python3.6/site-packages/poetry/console/commands/add.py in handle() at line 134
   status = installer.run()
 /usr/local/lib/python3.6/site-packages/poetry/installation/installer.py in run() at line 75
   self._do_install(local_repo)
 /usr/local/lib/python3.6/site-packages/poetry/installation/installer.py in _do_install() at line 158
   ops = solver.solve(use_latest=self._whitelist)
 /usr/local/lib/python3.6/site-packages/poetry/puzzle/solver.py in solve() at line 35
   self._package, provider, locked=locked, use_latest=use_latest
 /usr/local/lib/python3.6/site-packages/poetry/mixology/__init__.py in resolve_version() at line 8
   return solver.solve()
 /usr/local/lib/python3.6/site-packages/poetry/mixology/version_solver.py in solve() at line 79
   next = self._choose_package_version()
 /usr/local/lib/python3.6/site-packages/poetry/mixology/version_solver.py in _choose_package_version() at line 381
   for incompatibility in self._provider.incompatibilities_for(version):
 /usr/local/lib/python3.6/site-packages/poetry/puzzle/provider.py in incompatibilities_for() at line 293
   for dep in dependencies
 /usr/local/lib/python3.6/site-packages/poetry/puzzle/provider.py in <listcomp>() at line 293
   for dep in dependencies
 /usr/local/lib/python3.6/site-packages/poetry/mixology/incompatibility.py in __init__() at line 59
   assert by_ref[ref] is not None

[pawamoy]

Error handling with an explanation of what this assertion error is would be perfect!

So instead of

% poetry lock
Updating dependencies
Resolving dependencies... (0.0s)

[AssertionError]

or

% poetry lock -v
Using virtualenv: /home/pawamoy/.cache/pypoetry/virtualenvs/failprint--fnxWxWY-py3.8
Updating dependencies
Resolving dependencies... (0.0s)

[AssertionError]


Traceback (most recent call last):
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/clikit/console_application.py", line 131, in run
    status_code = command.handle(parsed_args, io)
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/clikit/api/command/command.py", line 120, in handle
    status_code = self._do_handle(args, io)
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/clikit/api/command/command.py", line 171, in _do_handle
    return getattr(handler, handler_method)(args, io, self)
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/cleo/commands/command.py", line 92, in wrap_handle
    return self.handle()
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/console/commands/lock.py", line 28, in handle
    return installer.run()
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/installation/installer.py", line 74, in run
    self._do_install(local_repo)
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/installation/installer.py", line 161, in _do_install
    ops = solver.solve(use_latest=self._whitelist)
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/puzzle/solver.py", line 36, in solve
    packages, depths = self._solve(use_latest=use_latest)
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/puzzle/solver.py", line 180, in _solve
    result = resolve_version(
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/mixology/__init__.py", line 7, in resolve_version
    return solver.solve()
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/mixology/version_solver.py", line 80, in solve
    next = self._choose_package_version()
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/mixology/version_solver.py", line 381, in _choose_package_version
    for incompatibility in self._provider.incompatibilities_for(version):
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/puzzle/provider.py", line 524, in incompatibilities_for
    return [
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/puzzle/provider.py", line 525, in <listcomp>
    Incompatibility(
  File "/home/pawamoy/.local/pipx/venvs/poetry/lib/python3.8/site-packages/poetry/mixology/incompatibility.py", line 60, in __init__
    assert by_ref[ref] is not None

We would have something like

% poetry lock
Updating dependencies
Resolving dependencies... (0.0s)

[AssertionError]
Package 'my-super-package' is listed as a dependency of itself.
This is not supported by Poetry.

[kasteph]

@david-fortini yes.