[Python-modules-team] Xlwt/Pyexcelerator licensing information needs to be clarified

[Jan Dittberner]

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Hello,

during my attempt to package xlwt for Debian and coordinating this
work with other Debian Python Module Team members, the following
problems regarding licensing information for both pyexcelerator and
its fork xlwt were discovered:

1. the included antlr.py is outdated and contains a hint to a file
   LICENSE.txt that is not include in pyexcelerator and xlwt sources
   we can solve this problem in Debian by removing antlr.py from the
   source tarball and depending on the recent antlr.py of an existing
   antlr package in Debian

2. some files (i.e. Bitmap.py) include a copyright of the author of
   the Perl module Spreadsheet::WriteExcel which is dual licensed
   under the terms of the Perl Artistic License and the GPL. It is not
   clear whether this file can be distributed as is. We have no
   obvious solution for this problem and cannot distribute the package
   for this reason.

We came to the conclusion that the sources of both packages are not
redistributable as they are now. Please clarify the license
information for these two files and provide new source archives.


Regards
Jan Dittberner
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