Poetry env install throws TypeError.

[WoaDmulL]

• I am on the latest Poetry version.

• I have searched the issues of this repo and believe that this is not a duplicate.

• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• OS version and name: macOS Catalina 10.15.2

• Poetry version: 1.0.3

• Link of a Gist with the contents of your pyproject.toml file: Not needed

Issue

Whenever I try to install my env, it throws:

[TypeError]
expected string or bytes-like object

Traceback (most recent call last):
  File "/Users/woadmull/.poetry/lib/poetry/_vendor/py3.7/clikit/console_application.py", line 131, in run
    status_code = command.handle(parsed_args, io)
  File "/Users/woadmull/.poetry/lib/poetry/_vendor/py3.7/clikit/api/command/command.py", line 120, in handle
    status_code = self._do_handle(args, io)
  File "/Users/woadmull/.poetry/lib/poetry/_vendor/py3.7/clikit/api/command/command.py", line 171, in _do_handle
    return getattr(handler, handler_method)(args, io, self)
  File "/Users/woadmull/.poetry/lib/poetry/_vendor/py3.7/cleo/commands/command.py", line 92, in wrap_handle
    return self.handle()
  File "/Users/woadmull/.poetry/lib/poetry/console/commands/install.py", line 48, in handle
    self.io, self.env, self.poetry.package, self.poetry.locker, self.poetry.pool
  File "/Users/woadmull/.poetry/lib/poetry/installation/installer.py", line 55, in __init__
    installed = self._get_installed()
  File "/Users/woadmull/.poetry/lib/poetry/installation/installer.py", line 488, in _get_installed
    return InstalledRepository.load(self._env)
  File "/Users/woadmull/.poetry/lib/poetry/repositories/installed_repository.py", line 26, in load
    package = Package(name, version, version)
  File "/Users/woadmull/.poetry/lib/poetry/packages/package.py", line 42, in __init__
    self._name = canonicalize_name(name)
  File "/Users/woadmull/.poetry/lib/poetry/utils/helpers.py", line 26, in canonicalize_name
    return _canonicalize_regex.sub('-', name).lower()

In the file poetry/lib/poetry/repositories/installed_repository.py there's a use for env.sys_path and the first entry for me is an empty string. As I can see from the docs https://docs.python.org/3/library/sys.html#sys.path

As initialized upon program startup, the first item of this list, path[0], is the directory containing the script that was used to invoke the Python interpreter. If the script directory is not available (e.g. if the interpreter is invoked interactively or if the script is read from standard input), path[0] is the empty string, which directs Python to search modules in the current directory first.

To get rid of the issue I had to skip over the empty entry by manually editing the file and skip the iteration that caused the issue.

[finswimmer]

Hello @WoaDmulL,

I believe you hit the same problem as in #1953. And it looks like this issue isn't really a poetry issue but a virtualenv issue.

I will close yours as a duplicate. If you disagree feel free to leave a comment.

fin swimmer

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.