Properly catch websocket CancelledError in websocket handler in Python 3.7 #2463
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…hon 3.7. In python 3.8 `CancelledError` is subclass of `BaseException`, but in Python 3.7 and earlier, it is subclass of `Exception`. That means in python 3.7, the `CancelledError` gets caught by the general `Exception` handler, and does not correctly handle the case of a cancelled websocket task. Fixes #2462
Codecov Report
@@ Coverage Diff @@
## main #2463 +/- ##
=============================================
+ Coverage 87.176% 87.255% +0.079%
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Files 60 60
Lines 5061 5061
Branches 909 909
=============================================
+ Hits 4412 4416 +4
+ Misses 477 474 -3
+ Partials 172 171 -1
Continue to review full report at Codecov.
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ashleysommer
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ashleysommer
changed the title
ahopkins
approved these changes
May 23, 2022
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In python 3.8
CancelledErroris subclass ofBaseException, but in Python 3.7 and earlier, it is subclass ofException. That means in python 3.7, theCancelledErrorgets caught by the generalExceptionhandler, and does not correctly handle the case of a cancelled websocket task.Fixes #2462