ln-713-pip-upgrader
Upgrades Python pip/poetry/pipenv dependencies with breaking change handling
Full skill instructions
Paths: File paths (
shared/,references/,../ln-*) are relative to skills repo root. If not found at CWD, locate this SKILL.md directory and go up one level for repo root.
Type: L3 Worker Category: 7XX Project Bootstrap Parent: ln-710-dependency-upgrader
Upgrades Python dependencies with automatic breaking change detection.
| Aspect | Details |
|---|---|
| Input | Project path, package manager type |
| Output | Updated requirements.txt/pyproject.toml |
| Supports | pip, poetry, pipenv |
See diagram.html for visual workflow.
Phases: Pre-flight → Detect Manager → Security Audit → Check Outdated → Apply Upgrades → Verify Installation → Report
| Check | Required | Action if Missing |
|---|---|---|
| requirements.txt OR pyproject.toml OR Pipfile | Yes | Block upgrade |
| Virtual environment active | No | Warn user (risk of system pollution) |
Workers assume coordinator (ln-710) already verified git state and created backup.
| Manager | Indicator Files |
|---|---|
| pip | requirements.txt |
| poetry | pyproject.toml + poetry.lock |
| pipenv | Pipfile + Pipfile.lock |
| Manager | Command |
|---|---|
| pip | pip-audit --json |
| poetry | poetry audit (via plugin) |
| pipenv | pipenv check |
| Severity | Action |
|---|---|
| Critical | Block upgrade, report |
| High | Warn, continue |
| Moderate/Low | Log only |
| Manager | Command |
|---|---|
| pip | pip list --outdated --format=json |
| poetry | poetry show --outdated |
| pipenv | pipenv update --outdated |
| Manager | Command |
|---|---|
| pip | pip install --upgrade <package> |
| pip (freeze) | pip freeze > requirements.txt |
| poetry | poetry update |
| pipenv | pipenv update |
| Priority | Tool | When to Use |
|---|---|---|
| 1 | mcp__context7__query-docs | First choice for library docs |
| 2 | mcp__Ref__ref_search_documentation | Official docs and PyPI |
| 3 | WebSearch | Latest info, community solutions |
| Step | Tool | Parameters |
|---|---|---|
| 1. Find library | mcp__context7__resolve-library-id | libraryName: "pydantic" |
| 2. Query docs | mcp__context7__query-docs | query: "pydantic v1 to v2 migration breaking changes" |
| Action | Tool | Query Example |
|---|---|---|
| Search | mcp__Ref__ref_search_documentation | "python pydantic 2 migration guide" |
| Read | mcp__Ref__ref_read_url | URL from search results |
Use when Context7/Ref return no results:
"<package> python <version> breaking changes migration""<ImportError message> <package> fix"| Check | Command |
|---|---|
| Import test | python -c "import <package>" |
| Tests | pytest or python -m pytest |
| Field | Description |
|---|---|
| project | Project path |
| packageManager | pip, poetry, or pipenv |
| duration | Total time |
| upgrades[] | Applied upgrades |
| verification | PASSED or FAILED |
MANDATORY READ: Load breaking_changes_patterns.md for full patterns.
| Package | Breaking Version | Key Changes |
|---|---|---|
| pydantic | 1 → 2 | V1 compatibility layer needed |
| sqlalchemy | 1 → 2 | Query syntax changes |
| fastapi | 0.99 → 0.100+ | Pydantic v2 required |
Options:
# Upgrade scope
upgradeType: major # major | minor | patch
# Security
auditLevel: high
minimumReleaseAge: 14
# Python specific
pythonVersion: "3.12"
useVirtualenv: true
# Verification
runTests: true
| Error | Cause | Solution |
|---|---|---|
| ImportError | Breaking API change | Search Context7/Ref for migration |
| Dependency conflict | Version mismatch | Try pip-compile or poetry lock |
Version: 1.1.0 Last Updated: 2026-01-10
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