urlib.request has the wrong output? or is jupyter understanding

[Kreijstal]

msys2/MINGW-packages#21139

Bug report

cpython-mingw/Lib/nturl2path.py

Line 45 in d21f60d

def pathname2url(p):

>>> from urllib.request import pathname2url
>>> pathname2url("C:/Users/kreij/AppData/Roaming/jupyter/runtime/jpserver-18504-open.html")
'///C://Users/kreij/AppData/Roaming/jupyter/runtime/jpserver-18504-open.html'

While the output should be
'//C:/Users/kreij/AppData/Roaming/jupyter/runtime/jpserver-18504-open.html'
With 3 '/' aka file:/// no browser gets launched

On my computer when I open explorer.exe and insert
file:///C://Users/kreij/AppData/Roaming/jupyter/runtime/jpserver-18504-open.html
nothing happens, but when I insert
file://C:/Users/kreij/AppData/Roaming/jupyter/runtime/jpserver-18504-open.html
a browser gets launched

Fixing this would fix the jupyter problem

Your environment

mingw64

[barneygale]

I believe three leading slashes is correct for DOS drive URLs, see RFC 8089 / wikipedia

[Kreijstal]

I believe three leading slashes is correct for DOS drive URLs, see RFC 8089 / wikipedia

you are right /// works but C:// is the one causing the error.

[barneygale]

I think that might have been fixed here: python#126214

Could you try in CPython main?

[Kreijstal]

I think that might have been fixed here: python#126214

Could you try in CPython main?

yeah, it was already fixed, I retract the PR
Thank you very much, and sorry for wasting time.

[Kreijstal]

seems it was fixed