urllib.request.urlopen('file:...').url incorrect value

[barneygale]

Bug report

Bug description:

When a file: URL is given to urllib.request.urlopen(), it returns an addinfourl object. This object's url attribute (and its deprecated geturl() method) usually return incorrect results. For example:

>>> from urllib.request import urlopen
>>> urlopen('file:Doc/requirements.txt').url
'file://Doc/requirements.txt'   # expected: 'file:Doc/requirements.txt'
>>> urlopen('file:C:/requirements.txt').url
'file://C:/requirements.txt'  # expected: 'file:C:/requirements.txt' or 'file:///C:/requirements.txt'

The code always prepends file://, but this might be too many slashes or too few depending on the path's drive and root.

CPython versions tested on:

CPython main branch

Operating systems tested on:

No response

Linked PRs

• GH-127090: Fix urllib.response.addinfourl.url value for opened file: URIs #127091

[kanishka-coder0809]

Hi @barneygale I can work upon this issue ...Can you provide some more details about the issue.

[barneygale]

I'm sorry @kanishka-coder0809, I'm afraid I already opened a PR for this issue shortly before your comment: #127091

[barneygale]

Fixed in 3.14, but not worth backporting IMO. Closing...