My tool byte-stats.py calculates statistics for the files it analyzes. With option -l (and -p) , it produces a list of values for different parts of the file (buckets), for example a list of entropy values. With this, one can have an idea how the entropy changes inside a file.
But as the saying goes, a picture is worth a thousand words, so I added option -g to produce a very simple graph of these values (just a line, no axis or scale). This does not require any extra Python module, I use Python’s TkInter module, the standard GUI for Python.
byte-stats_V0_0_7.zip (https)
MD5: 9991B5C5BEB3CB7989FE6DC30789EB49
SHA256: 82198195EA9C92832027CC8E2E3ABE161787551A06750E042096CF2DF0AC9384
Didier Stevens 
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