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MMA maintains database files in each lib directory. These are simple
files consisting of a single dictionary which is saved to disk using
the pickle module.
You can read this file with a simple python program:
#!/usr/bin/python
import pickle
infile = ".mmaDB"
f = open(infile, "r") # you have to be in the lib directory
f.readline() # Read/discard comment line
g = pickle.load(f)
f.close()
print(g)
We seriously considered switching to a json format, but several other
programs rely on this behavior so we'll leave well enough alone.
We use pickle protocol 2 for saving data. Don't use 3 or HIGHEST_PROTOCOL!
This results in database files which are not compatible been py2 and p3.
(And don't ask how I figured this out!)
bvdp, 2019/03/09
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