codedoctor 0.2.0

Beginner-friendly codebase doctor: lint, format, type-check, security and tests.

CodeDoctor

CodeDoctor is a beginner-friendly Python CLI that runs common quality checks (linting, formatting, type checking, security scanning, and tests) against any Python repository or folder you point it at, and produces a readable report.

It’s designed to be simple to run, easy to understand, and safe by default.

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Requirements

• Python 3.12+
• (Recommended) git available on PATH for best .gitignore support

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Install

From PyPI:

python -m pip install codedoctor

Verify:

codedoctor --help
codedoctor scan --help

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Setup (required)

Before running scans, initialize CodeDoctor once:

codedoctor setup

This creates a small config file in your user profile (JSON) that stores default behavior (e.g., whether to respect .gitignore, default report directory, etc.).

CI / no-config environments

If you’re running in CI or you don’t want CodeDoctor to create a config file, you can bypass the setup requirement with:

codedoctor scan . --assume-defaults

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Quick Start

Scan the current folder:

codedoctor scan .

Scan a different path:

codedoctor scan /path/to/repo

On Windows:

codedoctor scan C:\path\to\repo

Apply safe auto-fixes + formatting:

codedoctor scan . --fix

Skip tests:

codedoctor scan . --skip-tests

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Commands

codedoctor scan

codedoctor scan [PATH] [--fix] [--skip-tests] [--report-dir DIR] [--no-gitignore] \
  [--no-update-check] [--assume-defaults]

Options

• PATH
  Repository/folder to scan (default: .)

• --fix
  Apply safe auto-fixes (Ruff --fix) and format with Black.

• --skip-tests
  Skip running pytest.

• --report-dir DIR
  Directory (relative to the repo) to store reports. If omitted, uses the value from your CodeDoctor config.

• --no-gitignore
  Disable best-effort .gitignore handling (useful for debugging).

• --no-update-check
  Disable the non-blocking “update available” notice during scans.

• --assume-defaults
  Allow scanning without running codedoctor setup (useful for CI).

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codedoctor setup

codedoctor setup [--force]

Creates or updates the user config file.

• --force overwrites an existing config file.

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codedoctor update

codedoctor update [--yes]

Checks PyPI for the latest version and offers to upgrade CodeDoctor.

• --yes updates without prompting.

Note: if CodeDoctor was installed into a locked or managed Python environment, codedoctor update may fail due to permissions. In that case, update using your environment’s normal package management approach (venv, pipx, etc.).

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What gets run during a scan

CodeDoctor invokes the following tools (when installed/available):

• ruff check . (and optionally ruff check . --fix)
• black . --check (and optionally black .)
• mypy .
• bandit -r .
• pytest -q (unless --skip-tests)

CodeDoctor runs tools in the target repo by setting cwd to the repo path.

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Reports

Reports are written under the repository (default .codedoctor/):

• report-latest.txt — newest scan
• report-prev.txt — previous scan (rotated)
• report-YYYYMMDD-HHMMSS.txt — timestamped snapshot

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.gitignore behavior (best effort)

Different tools treat ignore rules differently:

• Ruff and Black already respect .gitignore in typical setups.
• MyPy and Bandit do not consistently honor .gitignore the same way.

To provide consistent behavior, CodeDoctor will attempt to use git’s ignore information when scanning a git repository by running:

git ls-files -ci --exclude-standard

Those ignored paths are then excluded from MyPy/Bandit runs.

If any of the following are true:

• the target folder is not a git repo
• git is not installed
• the git command fails

…CodeDoctor falls back to excluding common junk directories like .venv, .git, caches, build/, and dist/.

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Exit Codes

CodeDoctor returns an exit code that matches the overall result:

• 0 — all checks passed
• 1 — warnings (non-fatal issues)
• 2 — failures (one or more checks failed)

Missing tools are treated as failures for that check (return code 127) so the report remains explicit and beginner-friendly.

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Development

Clone and install editable:

git clone https://github.com/BigPattyOG/CodeDoctor.git
cd CodeDoctor
python -m pip install -e .

Run setup:

codedoctor setup

Run a scan:

codedoctor scan .

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License

MIT License. See LICENSE.