Poetry raises a [TypeError]'encoding' is an invalid keyword argument for this function when running in Python2.7 virtual environment

[badrobit]

• 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: Ubuntu 18.04

• Poetry version: 0.12.17

• Link of a Gist with the contents of your pyproject.toml file: I am not allowed due to company rules

Issue

When running poetry (command: poetry update) from within a 2.7 virtual environment while parsing a package defined as a git repository the following error occurs:

[TypeError]                                     
'encoding' is an invalid keyword argument for this function  

when run with the -vvv option I get the following:

Exception trace:
 /home/mroscoe/.poetry/lib/poetry/_vendor/py2.7/cleo/application.py in run() at line 94
   status_code = self.do_run(input_, output_)
 /home/mroscoe/.poetry/lib/poetry/console/application.py in do_run() at line 88
   return super(Application, self).do_run(i, o)
 /home/mroscoe/.poetry/lib/poetry/_vendor/py2.7/cleo/application.py in do_run() at line 197
   status_code = command.run(input_, output_)
 /home/mroscoe/.poetry/lib/poetry/console/commands/command.py in run() at line 77
   return super(BaseCommand, self).run(i, o)
 /home/mroscoe/.poetry/lib/poetry/_vendor/py2.7/cleo/commands/base_command.py in run() at line 146
   status_code = self.execute(input_, output_)
 /home/mroscoe/.poetry/lib/poetry/_vendor/py2.7/cleo/commands/command.py in execute() at line 107
   return self.handle()
 /home/mroscoe/.poetry/lib/poetry/console/commands/update.py in handle() at line 41
   return installer.run()
 /home/mroscoe/.poetry/lib/poetry/installation/installer.py in run() at line 73
   self._do_install(local_repo)
 /home/mroscoe/.poetry/lib/poetry/installation/installer.py in _do_install() at line 290
   self._execute(op)
 /home/mroscoe/.poetry/lib/poetry/installation/installer.py in _execute() at line 306
   getattr(self, "_execute_{}".format(method))(operation)
 /home/mroscoe/.poetry/lib/poetry/installation/installer.py in _execute_install() at line 331
   self._installer.install(operation.package)
 /home/mroscoe/.poetry/lib/poetry/installation/pip_installer.py in install() at line 35
   self.install_git(package)
 /home/mroscoe/.poetry/lib/poetry/installation/pip_installer.py in install_git() at line 230
   self.install_directory(pkg)
 /home/mroscoe/.poetry/lib/poetry/installation/pip_installer.py in install_directory() at line 196
   with open(setup, "w", encoding="utf-8") as f:

I was able to resolve the issue by adding the following import to the pip_installer.py file:

from io import open

[gramosg]

I have the same issue, does not happen in Poetry 0.12.16. Using it until this issue is solved.

[stale]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[badrobit]

Yes it is still relevant and needs to be fixed

[RoelantStegmann]

Also have this with 1.0.2

[jerpint]

Same Poetry version 1.0.2 on Ubuntu 18.04, using poetry inside a conda environment

[finswimmer]

Hello @jerpint ,

can you please retry with the current release of poetry (1.0.5)? If the issue still exists, can you please describe step by step how one can reproduce it?

Thanks!

fin swimmer

[RoelantStegmann]

Still doesn't work for me.

conda create --name poetry python=3.7
activate poetry
conda install poetry
pip install poetry --upgrade
poetry install 

[jerpint]

Here's what ended up working for me:

poetry env use python3.7

Before doing poetry install

[v5y8]

I also ran into this issue, on Poetry version 1.0.5 on Ubuntu 18.04 and running poetry inside a conda environment.

Apparently this can be caused by an outdated msgback-python package documented here and here.

I was able to solve this by running pip install --upgrade --user msgpack-python.

[mirosval]

I actually had to downgrade: pip install msgpack==0.6.2 pyenv & macOS

[finswimmer]

Closing this because no more comments have been added for a long time and according to @v5y8 this seems not be a poetry issue.

[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.