Poetry: Install throws CalledProcessError exit code 106 on windows 10

[johanvts]

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

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

• OS version and name: Windows 10

• Poetry version: 1.0.5
• Link of a Gist with the contents of your pyproject.toml file: https://gist.github.com/johanvts/69ee6924868396984d2c3489e604b340

Issue

After doing a clean install I run:

poetry init

no problem, toml is created as linked.

poetry install
Creating virtualenv hyperpy-M0-5xabO-py3.8 in C:\Users\Johan\AppData\Local\pypoetry\Cachevirtualenvs
[CalledProcessError]
Command '['C:\Users\Johan\AppData\Local\pypoetry\Cache\virtualenvs\hyperpy-M0-5xabO-py3.8\Scripts\python.exe', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 106.

Subsequent attempts at poetry install gives:

PS C:\Users\Johan\hyperpy> poetry install -vvv

[EnvCommandError]
Command ['C:\Users\Johan\AppData\Local\pypoetry\Cache\virtualenvs\hyperpy-M0-5xabO-py3.8\Scripts\python.exe', '-'] errored with the following return code 1, and output:
'C:\Users\Johan\AppData\Local\pypoetry\Cachevirtualenvs\hyperpy-M0-5xabO-py3.8\Scripts\python.exe' is not recognized as an internal or external command,
operable program or batch file.
input was : import sys

if hasattr(sys, "real_prefix"):
print(sys.real_prefix)
elif hasattr(sys, "base_prefix"):
print(sys.base_prefix)
else:
print(sys.prefix)

Traceback (most recent call last):
File "C:\Users\Johan.poetry\lib\poetry_vendor\py3.8clikitconsole_application.py", line 131, in run
status_code = command.handle(parsed_args, io)
File "C:\Users\Johan.poetry\lib\poetry_vendor\py3.8clikitapicommandcommand.py", line 120, in handle
status_code = self._do_handle(args, io)
File "C:\Users\Johan.poetry\lib\poetry_vendor\py3.8clikitapicommandcommand.py", line 163, in _do_handle
self._dispatcher.dispatch(PRE_HANDLE, event)
File "C:\Users\Johan.poetry\lib\poetry_vendor\py3.8clikitapi\event\event_dispatcher.py", line 22, in dispatch
self._do_dispatch(listeners, event_name, event)
File "C:\Users\Johan.poetry\lib\poetry_vendor\py3.8clikitapi\event\event_dispatcher.py", line 89, in _do_dispatch
listener(event, event_name, self)
File "C:\Users\Johan.poetry\lib\poetryconsoleconfigapplication_config.py", line 89, in set_env
env = env_manager.create_venv(io)
File "C:\Users\Johan.poetry\lib\poetry\utils\env.py", line 489, in create_venv
env = self.get(reload=True)
File "C:\Users\Johan.poetry\lib\poetry\utils\env.py", line 352, in get
return VirtualEnv(venv)
File "C:\Users\Johan.poetry\lib\poetry\utils\env.py", line 1022, in __init__
self._base = Path(self.run("python", "-", input_=GET_BASE_PREFIX).strip())
File "C:\Users\Johan.poetry\lib\poetry\utils\env.py", line 856, in run
return self._run(cmd, *kwargs)
File "C:\Users\Johan.poetry\lib\poetry\utils\env.py", line 1089, in _run
return super(VirtualEnv, self)._run(cmd, *kwargs)
File "C:\Users\Johan.poetry\lib\poetry\utils\env.py", line 893, in _run
raise EnvCommandError(e, input=input_)

I am aware of https://github.com/python-poetry/poetry/issues/1587
However Python 3.8 is installed through the store and works as expected:

PS C:\Users\Johan\hyperpy> where.exe python
C:\Users\Johan\AppData\Local\Microsoft\WindowsApps\python.exe
PS C:\Users\Johan\hyperpy> python
Python 3.8.3 (tags/v3.8.3:6f8c832, May 13 2020, 22:37:02) [MSC v.1924 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

>

[dugagjin]

I found out that poetry 1.0.8 does not work with the new windows terminal. It works without issues on cmd.

[etothepii]

Still having issue in VSCode with 1.0.9

[thesmiley1]

There seems to be something of a path mismatch happening here.

Poetry makes the initial copy of the python executable to %LocalAppData%\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypoetry\..., but subsequently expects the environment to be located at %LocalAppData%\pypoetry\....

Symlinking %LocalAppData%\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypoetry to %LocalAppData%\pypoetry seems to work around the issue for me.

[JPTIZ]

There seems to be something of a path mismatch happening here.

Poetry makes the initial copy of the python executable to %LocalAppData%\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypoetry\..., but subsequently expects the environment to be located at %LocalAppData%\pypoetry\....

Symlinking %LocalAppData%\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypoetry to %LocalAppData%\pypoetry seems to work around the issue for me.

Yup, that was exactly my issue here! Symlinking solved this for me too.

[hay]

I had this issue in both Powershell and cmd.exe, and symlinking worked indeed.

For those who don't how to symlink on Windows (i didn't have a clue), you need to use cmd (not Powershell) then do this:

cd %LocalAppData%
rmdir /q /s pypoetry
mklink /d %LocalAppData%\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypoetry pypoetry

[GiovanniBordiga]

I had this issue in both Powershell and cmd.exe, and symlinking worked indeed.

For those who don't how to symlink on Windows (i didn't have a clue), you need to use cmd (not Powershell) then do this:

cd %LocalAppData%
rmdir /q /s pypoetry
mklink /d %LocalAppData%\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypoetry pypoetry

Thanks @hay!

Be aware that the order of target and link is reversed!
It should be like

mklink /d pypoetry %LocalAppData%\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\Local\pypoetry