Links for PartitionSets
PartitionSets-0.1.1.tar.bz2
PartitionSets-0.1.1.tar.gz
PartitionSets-0.1.1.zip
http://en.wikipedia.org/wiki/On-Line_Encyclopedia_of_Integer_Sequences
https://pypi.python.org/pypi/flake8
http://code.activestate.com/recipes/576694/
http://oeis.org/A000110
http://en.wikipedia.org/wiki/Partition_of_a_set
https://pypi.python.org/pypi/pylint
http://en.wikipedia.org/wiki/Bell_number
http://code.activestate.com/recipes/577211/