Code cleanup.

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
# On branch master
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#	modified:   lizepy/__init__.py
#	modified:   setup.py
#	modified:   tests/__init__.py
#	modified:   tests/test.py
#
