Fix minor issues in OSFS.scandir
#475
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+60
−36
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Type of changes
Checklist
Description
Since Python 3.6,
os.scandirreturns an object that must be explicitly closed if the iteration stops before the iterator is exhausted. This PR does that, which should suppressResourceWarningthat were occasionally raised by an unclosed iterator inOSFS.scandir. I also changed the currentOSFS.scandircode so that it only callsstatwhen necessary. Closes #311 .I made it so
tests.test_osfs.TestOSFSnow treats warnings as errors, but it's still not 100% feasible to test this kind of warnings, because they are thrown on garbage collection, most of the time after our test case has finished running.