python module_error ai_generated true

import file mismatch: /app/tests/test_models.py has this __file__ attribute: /app/tests/test_models.py which is not the same as the test file we want to collect: /app/tests/unit/test_models.py HINT: remove __pycache__ / .pyc files and/or use a unique basename for your test file modules

ID: python/pytest-import-mismatch-missing-init

Also available as: JSON · Markdown · 中文
80%Fix Rate
89%Confidence
0Evidence
2024-02-08First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
6.x active — — —
7.x active — — —
8.x active — — —

Root Cause

Two test files share the same basename (test_models.py) in different directories, but neither directory is a Python package (no __init__.py), so pytest imports both as top-level module `test_models`, causing a collision.

generic

中文

两个测试文件在不同目录下共享相同基名（test_models.py），但两个目录都不是 Python 包（缺少 __init__.py），因此 pytest 将两者都作为顶层模块 `test_models` 导入，导致冲突。

Workarounds

  1. 95% success 
    touch tests/__init__.py tests/unit/__init__.py
# pytest then imports as tests.test_models and tests.unit.test_models
  2. 90% success 
    mv tests/test_models.py tests/test_api_models.py
mv tests/unit/test_models.py tests/unit/test_db_models.py
  3. 85% success 
    # pytest.ini
[pytest]
addopts = --import-mode=importlib

Dead Ends

Common approaches that don't work:

  1. 85% fail

    Clearing caches removes stale bytecode but does not fix the underlying module-name collision; the error reappears on the next run.

  2. 90% fail

    Changing PYTHONPATH does not give the two files distinct module names; the collision is due to identical basenames without package context.