@readystack/pytest-deprecation-lint

Pytest Deprecation Lint (pytest 8 removals)

Marks the lines in your test suite that current pytest no longer runs — and the config keys it silently ignores.

Install

npx @readystack/pytest-deprecation-lint file

Node 18+. The same 19 rules as the VS Code extension, from a terminal or CI.

Free

• Lint the test file, conftest.py or pytest config you have open and see every removed API and every silently ignored config key, each with the pytest version that removed it and the exact replacement line.
• --rules lists every rule

With a licence ($29 once)

• Sweep every test file, conftest.py and config file in the workspace in one pass and export the dated findings as Markdown or JSON you keep and paste into a CI job or a migration ticket.

@readystack/pytest-deprecation-lint --dir ./templates --report html --out report.html

A contract Python engineer reviewing the same suite for pytest 8 breakage by hand bills roughly $80-$120 an hour in the US market.

Use from an AI agent (MCP)

Claude Code · Cursor · Windsurf · any MCP client - add to your MCP config:

{ "mcpServers": { "pytest-deprecation-lint": { "command": "npx", "args": ["-y", "@readystack/pytest-deprecation-lint", "--mcp"] } } }

Tools: check_text and check_file (free) · check_dir (licence). The agent gets every finding with the line number.

Use in CI

- name: Pytest Deprecation Lint (pytest 8 removals)
  run: npx -y @readystack/pytest-deprecation-lint --dir . --ci

(container: docker run --rm -v "$PWD:/work" getreadystack/pytest-deprecation-lint --dir /work --ci)

The folder sweep, reports and CI mode need one licence — one payment, no subscription. Set READYSTACK_LICENSE=<key> or run --license <key> once.

Get a licence