Infinite recursion in _find_file on Windows when called via pytest

[mshafer1]

Relevant info:

• Python version: 3.7.9 (via pyenv-win)
• PyTest version: 7.2.0
• python-decouple version: 3.7

Debugging information: For some reason, when I run pytest on a module (A) that depends on a module (B) that pulls in decouple, self._caller_path() return "c:\Users\...", but if I import decouple in my test (in A) and call it directly, search_path comes in as "C:\Users\..."

The former of these causes an infinite recursion in _find_file since os.path.abspath(os.sep) returns C:\\.... (equivalent to Windows, but not to string comparisons...)

I could raise a PR to contribute either:

• making the comparison case in-sensitive
• using os.path.relpath to determine that the two paths are equivalent (os.path.relpath(parent, os.path.abspath(os.sep)) != ".") ?

unfortunately, since python-decouple uses travis, I'm not sure adding a Windows run to the test suite will be easy, nor am I sure that would catch this case since I'm only seeing this when executing via python -m pytest...

[mshafer1]

Hypothesis, somewhere pytest is calling os.path.normcase

[henriquebastos]

This looks like a bug. I am not sure how to reproduce because I do not have any access to Windows machines.

You can use a workaround for now:

from decouple import Config, RepositoryEnv
config = Config(RepositoryEnv("path-to-my-env-file"))

[henriquebastos]

Also if you provide a PR, I can gladly check it out.

[mshafer1]

The workaround I've used for now is to create an empty .env file when I hit this.

PR #154 opened to fix.

[henriquebastos]

Fixed