Task: Generate a Python Package Makefile

You are creating a Makefile for a Python library called dataparse. The project uses pyproject.toml and hatch (or python -m build) for packaging. Requirements:

• develop target: installs the package in editable mode with dev extras (pip install -e .[dev])
• test target: runs pytest with coverage
• lint target: runs ruff check . and mypy src/
• build target: runs python -m build
• clean target: removes dist/, build/, *.egg-info/, and __pycache__ directories
• help target: auto-generated from ## comments
• All targets are phony (none produce files directly)
• Python interpreter is user-overridable: PYTHON ?= python3
• Modern GNU Make header required

Produce a Makefile for this Python project. Each target recipe must handle multi-step commands correctly (do not rely on separate shell lines for cd + command).