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socket.getfqdn() return hostname with trailing . (dot) in WSL #113818

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gugupy opened this issue Jan 8, 2024 · 0 comments
Open

socket.getfqdn() return hostname with trailing . (dot) in WSL #113818

gugupy opened this issue Jan 8, 2024 · 0 comments
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type-bug An unexpected behavior, bug, or error

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@gugupy
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gugupy commented Jan 8, 2024 •
edited by github-actions bot

Bug report

Bug description:

I faced this problem when I was working on smtplib.SMTP where ehlo falied with invalid domain name.

While debug the problem found WSL default adding the host entry in /etc/hosts as below,

...
127.0.0.1       gugupy.       gugupy

FQDN

>>> import socket
>>> socket.getfqdn()
>>> gugupy.

So self.local_hostname set to gugupy. which actually lead to the problem.

CPython versions tested on:

3.11

Operating systems tested on:

Linux, Other
@gugupy gugupy added the type-bug An unexpected behavior, bug, or error label Jan 8, 2024
@gugupy gugupy changed the title socket.getfqdn() return hostname with leading . (dot) in WSL socket.getfqdn() return hostname with trailing . (dot) in WSL Jan 8, 2024
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