Check ReStructured Text syntax validity
On
uploading to PyPI
with invalid README.rst syntax, you may get error:
HTTPError: 400 Client Error: The description failed to render in the default format of reStructuredText. See https://pypi.org/help/#description-content-type for more information. for url: https://upload.pypi.org/legacy/
Fix
The online RST editor/renderer rst.ninjs.org helps avoid errant README’s seen on some major projects on PyPI.