Debugging pattern for resolving ModuleNotFoundError when CLI entry points use wrong Python interpreter
Scanned 9/9/2026
Install to Claude Code
Skills Directorynpx -y skills add vamseeachanta/workspace-hub --skill diagnose-venv-shebang-conflicts --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: diagnose-venv-shebang-conflicts
description: Debugging pattern for resolving ModuleNotFoundError when CLI entry points use wrong Python interpreter
version: 1.0.0
source: auto-extracted
extracted: 2026-04-10
metadata:
tags: ["python", "virtualenv", "debugging", "cli"]
---
# Diagnose Virtual Environment Shebang Conflicts
When a CLI tool installed via pip fails with ModuleNotFoundError despite packages being installed, check if the entry point shebang points outside the venv. Compare the shebang in `~/.local/bin/<tool>` against the venv's actual python path (`<venv>/bin/python3`). If they differ, the generic `#!/usr/bin/env python3` may resolve to system python lacking venv packages. Update the shebang to point directly to the venv's python, or investigate if package updates are regenerating entry points with incorrect shebangs.Is this your skill, or is something wrong with this listing? Request removal or report an issue. Author removals are honored within 72 hours.
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