Code cleanup, fix two bugs#4

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jikamens wants to merge 12 commits intomit-athena:masterfrom

jikamens:master

Commits on May 24, 2017

Remove top-level side effects from importing libdelete
Jonathan Kamens
committed
Remove unnecessary afs.fs import from delete
Jonathan Kamens
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Define perror once in libdelete.py rather than everywhere
Jonathan Kamens
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Fix missing `time` import
Jonathan Kamens
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Fix typo in variable reference
Jonathan Kamens
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Flake8
Jonathan Kamens
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Fix check for valid loggers in `debug_callback`
Jonathan Kamens
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Define `debug_callback` code once, rather than in every script
Jonathan Kamens
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lsdel and expunge shouldn't output extra blank lines
Jonathan Kamens
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Allow paths to be specified to undelete
Jonathan Kamens
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Use uniquifying list when searching for deleted files
Jonathan Kamens
committed

Commits on Feb 4, 2020

Python3 compatibility
jikamens
committed