# Python Import Path Mismatch Debugging

> Diagnose and fix ModuleNotFoundError when a package is installed but imports still fail due to environment/path mismatches

- Skill: `vamseeachanta/python-import-path-mismatch-debugging` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/python-import-path-mismatch-debugging`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/python-import-path-mismatch-debugging/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/python-import-path-mismatch-debugging

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# Python Import Path Mismatch Debugging

When a ModuleNotFoundError occurs for an installed package, the issue is often an environment or path mismatch rather than a missing installation. Check: (1) which Python interpreter the CLI/script is using via `which python` or shebang lines, (2) confirm the package is installed in that specific environment with `pip list`, and (3) verify the active virtual environment matches where the package was installed. Use `python -c "import module; print(module.__file__)"` to trace which environment Python is actually loading from.