do not divide by None for data.min and/or data.max being None (see patch #2833369)
tree3234f37a535618a804330fc99227000ffdcdc607
-rw-r--r-- 141 AUTHORS
-rw-r--r-- 45141 CHANGES
-rw-r--r-- 4282 INSTALL
-rw-r--r-- 15145 LICENSE
-rw-r--r-- 462 MANIFEST.in
-rw-r--r-- 1449 README
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drwxr-xr-x - design
drwxr-xr-x - examples
drwxr-xr-x - faq
drwxr-xr-x - gallery
drwxr-xr-x - manual
drwxr-xr-x - pyx
-rw-r--r-- 2206 pyxrc
-rw-r--r-- 606 setup.cfg
-rwxr-xr-x 7685 setup.py
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drwxr-xr-x - www