[Slackbuilds-users] building calibre-0.9.13-x86_64 fails - missing py module

[Cary]

Hello,

It looks as though a module needs to be added to REQUIRES= in the
calibre.info file.
Using sbopkg, my attempt to upgrade from calibre-0.8.69 to version 0.9.13
failed with the following error:

*
* Running gui
*

Traceback (most recent call last):
  File "setup.py", line 99, in <module>
    sys.exit(main())
  File "setup.py", line 85, in main
    command.run_all(opts)
  File "/tmp/SBo/calibre/setup/__init__.py", line 163, in run_all
    self.run_cmd(self, opts)
  File "/tmp/SBo/calibre/setup/__init__.py", line 156, in run_cmd
    self.run_cmd(scmd, opts)
  File "/tmp/SBo/calibre/setup/__init__.py", line 159, in run_cmd
    cmd.run(opts)
  File "/tmp/SBo/calibre/setup/gui.py", line 37, in run
    self.build_forms()
  File "/tmp/SBo/calibre/setup/gui.py", line 60, in build_forms
    from calibre.gui2 import build_forms
  File "/tmp/SBo/calibre/src/calibre/gui2/__init__.py", line 21, in <module>
    from calibre.utils.date import UNDEFINED_DATE
  File "/tmp/SBo/calibre/src/calibre/utils/date.py", line 13, in <module>
    from dateutil.tz import tzlocal, tzutc
  File "/usr/lib64/python2.7/site-packages/dateutil/tz.py", line 9, in <module>
    from six import string_types, PY3
ImportError: No module named six


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---------end of error msg.
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After building and installing module python/six the upgrade 
of calibre was successful.

Cary