[Python-modules-team] Bug#880903: python-icalendar downloads from the internet during the build

[Adrian Bunk]

Source: python-icalendar
Version: 3.11.7-2
Severity: serious

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/python-icalendar.html

...
   debian/rules override_dh_auto_test
make[1]: Entering directory '/build/1st/python-icalendar-3.11.7'
debian/rules:28: warning: overriding recipe for target 'override_dh_installdocs'
debian/rules:21: warning: ignoring old recipe for target 'override_dh_installdocs'
python setup.py test
running test
Searching for pytz
Reading https://pypi.python.org/simple/pytz/
Download error on https://pypi.python.org/simple/pytz/: [Errno -3] Temporary failure in name resolution -- Some packages may not be found!
Couldn't find index page for 'pytz' (maybe misspelled?)
Scanning index of all packages (this may take a while)
Reading https://pypi.python.org/simple/
Download error on https://pypi.python.org/simple/: [Errno -3] Temporary failure in name resolution -- Some packages may not be found!
No local packages or working download links found for pytz
error: Could not find suitable distribution for Requirement.parse('pytz')
debian/rules:18: recipe for target 'override_dh_auto_test' failed
make[1]: *** [override_dh_auto_test] Error 1