[BUG] requests is not installed by default but unconditionally imported

[yubiuser]

Since 3.16 requests is not installed by default (e.g. removed from requirements.txt) and replaced by httpx. One import however is executed unconditionally:

webchanges/webchanges/util.py

Line 25 in 6f56ed2

import requests

This can lead to errors

/data/webchanges # webchanges --help
Traceback (most recent call last):
  File "webchanges.py", line 1, in <module>
  File "PyInstaller/loader/pyimod02_importers.py", line 419, in exec_module
  File "webchanges/cli.py", line 25, in <module>
  File "PyInstaller/loader/pyimod02_importers.py", line 419, in exec_module
  File "webchanges/util.py", line 25, in <module>

[mborsetti]

Apologies and thank you so very much for reporting it. Unfortunately, testing loads both libraries and therefore it didn't catch it.

Quick fix in 3.17.1 and will become conditional in the next release.