Python Packaging Bug Finder

Python Packaging Bug Finder

Identifies known packaging and build issues for Python projects by searching GitHub repositories for relevant issues, analyzing their content and comments, and determining resolution status.

Instructions

When investigating packaging problems for a Python project, follow this workflow:

1. Find the Repository

Use the source finder skill to locate the project's GitHub repository:

Skill: python-packaging-source-finder
Args: <package_name>

If the skill returns a repository URL with high or medium confidence, proceed. If confidence is low or no URL found, stop here and return an error.

2. Search for Packaging Issues

Once you have the repository URL, search for packaging-related issues by:

1. Access the GitHub issues page: Use WebFetch to get the repository's issues page (typically <repo_url>/issues)

2. Filter for packaging keywords: Look for issues with titles containing:

   • Build-related: "build", "compilation", "compile", "setup.py", "pyproject.toml", "cmake", "makefile"
   • Installation: "install", "pip", "wheel", "package", "packaging", "distribution"
   • Environment: "gcc", "clang", "msvc", "python", "version", "dependency"
   • Platform: "windows", "linux", "macos", "arm64", "x86_64"
   • Errors: "error", "fail", "broken", "issue"

3. Prioritize open issues: Focus on open issues first, then closed ones that might affect the target version

3. Analyze Each Relevant Issue

For each packaging-related issue found:

1. Fetch issue details: Use WebFetch to get the full issue page including:

   • Issue description
   • All comments
   • Labels and milestones
   • Current status (open/closed)

2. Extract key information:

   • Problem description: What packaging/build problem is described?
   • Affected versions: Which versions are mentioned as problematic?
   • Resolution status: Is it fixed, pending, or unresolved?
   • Available fixes: Are there PRs, commits, or workarounds mentioned?
   • Version inclusion: If fixed, in which version was the fix included?

3. Look for resolution indicators:

   • Fixed with PR: Comments mentioning "fixed in PR #XXX" or "merged in #XXX"
   • Fixed with commit: Comments with commit SHAs or "fixed in commit XXX"
   • Version mentions: "fixed in v1.X.X" or "available in next release"
   • Workarounds: Comments with "workaround", "temporary fix", "try this"
   • Status updates: "resolved", "closed as fixed", "duplicate of #XXX"

4. Version Impact Assessment

For each issue, determine:

1. Does it affect the target version?

   • Compare mentioned problematic versions with target version
   • Check if fix is included in target version
   • Look for version-specific comments

2. What's the resolution status?

   • Fixed and Included: Fix is available and included in target version
   • Fixed but Pending: Fix exists but not yet in target version
   • Open with Workarounds: No fix but workarounds available
   • Unresolved: Open issue with no clear solution

Output Format

Provide a structured analysis:

# Packaging Issues Analysis for <package_name> [version]

## Repository
- URL: <repository_url>
- Confidence: <high/medium/low>

## Issues Found: X total

### [Issue Status] Issue Title
- **URL**: <issue_url>
- **Status**: Open/Closed
- **Labels**: <relevant_labels>
- **Problem**: <brief_description>
- **Affects Target Version**: Yes/No/Unknown
- **Resolution**:
  - Type: Fixed/Pending/Workaround/Unresolved
  - Details: <fix_description>
  - Available in: <version_if_applicable>
- **Workarounds**: <list_of_workarounds>
- **Recommendation**: <action_to_take>

## Summary
- Total packaging issues: X
- Affecting target version: X
- With available fixes: X
- With workarounds only: X
- Unresolved: X

Issue Categories to Search For

Build System Issues

• Keywords: "build fails", "compilation error", "setup.py error", "pyproject.toml", "cmake error"
• Typical problems: Build configuration, missing dependencies, tool compatibility

Compiler Issues

• Keywords: "gcc", "clang", "msvc", "compiler error", "linker error", "C++ standard"
• Typical problems: Compiler version compatibility, C++ standard issues, linking problems

Platform-Specific Issues

• Keywords: "windows", "linux", "macos", "arm64", "x86_64", "architecture"
• Typical problems: Platform-specific build failures, architecture compatibility

Dependency Issues

• Keywords: "dependency", "requirements", "version conflict", "missing"
• Typical problems: Missing build dependencies, version conflicts, circular dependencies

Installation Issues

• Keywords: "pip install", "wheel", "sdist", "packaging", "distribution"
• Typical problems: Installation failures, wheel building issues, PyPI problems

Analysis Guidelines

Effective Issue Analysis

1. Read the original description carefully - often contains version info and problem details
2. Scan all comments chronologically - resolution often emerges in later comments
3. Look for maintainer responses - project maintainers often provide authoritative status updates
4. Check linked PRs and commits - follow references to understand fix implementation
5. Note milestone assignments - indicates planned fix version

Common Resolution Patterns

• "Fixed in PR #XXX" → Check if PR is merged and in which version
• "Workaround: use version X.Y" → Temporary solution available
• "Duplicate of #XXX" → Check the referenced issue for resolution
• "Resolved in latest" → Fix may be in development branch
• Milestone assignments → Indicates planned fix version

The bug finder provides critical context for making informed decisions about package building, version selection, and issue avoidance strategies.

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