Permission error on conda environment temp file when running in Windows OS

[Heng Kuan Wee]

I am receiving the following error (in .tox/python/log/python-0.log) when running tox.

# Error snippet
      File "C:\Users\xxx\Anaconda3\lib\site-packages\conda_env\env.py", line 163, in from_file
        with open(filename, 'rb') as fp:
    PermissionError: [Errno 13] Permission denied: 'C:\\Users\\yyy\\tox_conda_tmp13zv20n4.yaml'

`$ C:\Users\xxx\Anaconda3\Scripts\conda-env-script.py create -p python --file C:\Users\yyy\tox_conda_tmp13zv20n4.yaml`

Steps to reproduce the error on Window OS (Windows 10).

tox.ini

[tox]
envlist = py310
skipsdist = True

[testenv]
conda_env =
    environment.yaml

environment.yaml

name: tox_environment
dependencies:
  - python=3.10
  - pytest=7.1.2
  - tox=3.27.1
  - tox-conda=0.10.1

run the following commands on Windows OS

# create conda env
conda env create -f environment.yaml
conda activate tox_environment
# run tox
tox

Suspected cause of error

I suspect that the error might be due to the use of tempfile.NamedTemporaryFile in plugins.py. As per docs:

That name can be retrieved from the name attribute of the returned file-like object. Whether the name can be used to open the file a second time, while the named temporary file is still open, varies across platforms (it can be so used on Unix; it cannot on Windows)

Any help is appreciated, thanks!

[Antoine Dechaume]

@hengkuanwee Could you provide a reproducer?

[Heng Kuan Wee]

will do, let me update the comment above, so it's easier to reference. To clarify, reproducer means all details to reproduce the error?

[Heng Kuan Wee]

Hi @AntoineD, I have

• tested and updated the reproducer
• also fixed the PR on the failed testings

Do let me know if there's anything else I can improve on 😄

[Antoine Dechaume]

@hengkuanwee Where is the reproducer?

[Heng Kuan Wee]

Hi @AntoineD I assumed reproducer was the steps required to reproduce the error (which I updated in the original comment). Can I check what do you mean by reproducer?

[Antoine Dechaume]

I haven't seen you've updated the original comment, thank you!

[Antoine Dechaume]

Version 0.10.2 contains your fix, thank you!

[Heng Kuan Wee]

Hi @AntoineD, thank you and much appreciated 😄