Bug report

Bug description:

Windows-specific regression in Python 3.14 caused byd783d7b

Some programs generate file URLs by adding afile:// prefix to a path. On Windows, this can result in URLs likefile://C:/foo. Though these URLs are malformed, they were correctly handled byurllib.request.url2pathname() until 3.14.

>>>fromurllib.requestimporturl2pathname>>>url2pathname('//C:/foo')'\\\\C:\\foo'# expected 'C:\\foo'

CPython versions tested on:

3.14

Operating systems tested on:

No response

Linked PRs

• GH-137059:url2pathname(): fix support for drive letter in netloc #137060
• [3.14] GH-137059:url2pathname(): fix support for drive letter in netloc (GH-137060) #137144