Fix tests, imports and readme#64

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frankharkins wants to merge 6 commits intojdan:masterfrom

frankharkins:master

Commits on Apr 12, 2021

add melopy to imports
Frank Harkins
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/ --> //
Frank Harkins
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update readme
Frank Harkins
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Commits on May 27, 2021

make work with python2
Frank Harkins
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update README.txt
Frank Harkins
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add missing file
Frank Harkins
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