[Python-modules-team] Bug#878542: libcloud FTBFS and Debci failure with Python 3.6 as default

[Adrian Bunk]

Source: libcloud
Version: 1.5.0-1
Severity: serious
Tags: buster sid

https://ci.debian.net/packages/libc/libcloud/unstable/amd64/
https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/libcloud.html

...
======================================================================
ERROR: test_deprecated_warning (libcloud.test.test_utils.TestUtils)
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Traceback (most recent call last):
  File "/build/1st/libcloud-1.5.0/libcloud/test/test_utils.py", line 140, in test_deprecated_warning
    libcloud.utils.deprecated_warning('test_module')
  File "/build/1st/libcloud-1.5.0/libcloud/utils/__init__.py", line 38, in deprecated_warning
    category=DeprecationWarning)
  File "/usr/lib/python3.6/warnings.py", line 99, in _showwarnmsg
    msg.file, msg.line)
TypeError: show_warning() takes from 4 to 5 positional arguments but 6 were given

======================================================================
ERROR: test_in_development_warning (libcloud.test.test_utils.TestUtils)
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Traceback (most recent call last):
  File "/build/1st/libcloud-1.5.0/libcloud/test/test_utils.py", line 153, in test_in_development_warning
    libcloud.utils.in_development_warning('test_module')
  File "/build/1st/libcloud-1.5.0/libcloud/utils/__init__.py", line 45, in in_development_warning
    category=FutureWarning)
  File "/usr/lib/python3.6/warnings.py", line 99, in _showwarnmsg
    msg.file, msg.line)
TypeError: show_warning() takes from 4 to 5 positional arguments but 6 were given

----------------------------------------------------------------------
Ran 6131 tests in 43.732s

FAILED (errors=2, skipped=18)
debian/rules:10: recipe for target 'override_dh_auto_test' failed
make[1]: *** [override_dh_auto_test] Error 1