AssertionError when attempting to locate dotenv file

Author: HonakerMCreated Jan 23, 2024Updated Dec 17, 2025

Hello,

I updated to the latest python-dotenv version (1.0.1) this morning and am now starting to see the following Assertion Errors:

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
<>
  File "/usr/local/lib/python3.11/site-packages/dotenv/main.py", line 305, in find_dotenv
    assert frame.f_back is not None
           ^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError

The code that generated the above looks like the following:

if path := find_dotenv(raise_error_if_not_found=False):
  load_dotenv()

Please let me know if there are any other logs or data I can provide to help the debugging/investigation process