Fix segfault from repr attempting to access attrs on uninitialized instance #520
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Fixes #519
IIUC
__init__
already useshandle=None
as an indicator that something may have gone wrong during initialization. This PR leverages this fact to avoid calling the low-levelgv.agnameof
onself.handle
whenself.handle is None
.@aaronzo the test and proposed fix are basically ripped right out of your suggestions in #519 so I went ahead and added you as a co-author - hopefully that's okay! Should any other corner-cases be added to the test suite to ensure this fix covers the full gamut?