Public bug reported:
blinker (and maybe other packages) are failing to transition in focal
due to the nose package's dependence on python2.
nose provides both py2 and py3 binary packages, however simply dropping
the py2 binary package and switching to python3 dependencies is
insufficient, because nose's upstream code includes some py2-isms, such
as using the 'print' statement instead of the 'print()' function.
>From `debuild -uc -us -i`:
python3 setup.py build_sphinx
running build_sphinx
Running Sphinx v1.8.5
Configuration error:
There is a syntax error in your configuration file: invalid syntax (core.py,
line 153)
Did you change the syntax from 2.x to 3.x?
make[1]: *** [debian/rules:13: override_dh_auto_build] Error 1
make[1]: Leaving directory '/home/bryce/ubuntu/Nose/nose-gu'
make: *** [debian/rules:9: build] Error 2
dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2
debuild: fatal error at line 1182:
dpkg-buildpackage -us -uc -ui -i -I.bzr -I.svn -I.git -i failed
triage-focal+20.04:~/ubuntu/Nose/nose-gu$ grep -n 'print ' nose/*.py
nose/core.py:153: print "%s version %s" %
(os.path.basename(sys.argv[0]), __version__)
nose/core.py:227: print "Plugin %s" % p.name
nose/core.py:229: print " score: %s" % p.score
nose/core.py:230: print '\n'.join(textwrap.wrap(p.help().strip(),
nose/core.py:238: print " Options:"
nose/core.py:240: print ' %s' % (', '.join(opts))
nose/core.py:242: print '\n'.join(
nose/inspector.py:205: # print line[end[1]:]
nose/loader.py:324: # print "Check %s (%s) in %s" % (item, test,
module.__name__)
nose/proxy.py:93: # name as the actual exception to make it print
correctly.
nose/result.py:101: """Overrides to print all errorClasses errors as
well.
nose/result.py:113: """Called by the test runner to print the final
summary of test
nose/util.py:593: >>> from pprint import pprint
I don't know if there are other python2->3 problems besides the print
statement, but typically there's more than that to do...
** Affects: blinker (Ubuntu)
Importance: Undecided
Status: New
** Affects: nose (Ubuntu)
Importance: Undecided
Status: New
** Tags: update-excuse
** Also affects: blinker (Ubuntu)
Importance: Undecided
Status: New
** Tags added: update-excuse
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https://bugs.launchpad.net/bugs/1859880
Title:
FTBFS building without python2
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