bpo-32089: Fix warnings filters in dev mode #4482
Merged
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In the developer mode (-X dev), add the ResourceWarning filter
(action: "always) before the filter showing all warnings (action:
default).
Write a functional test to make sure that ResourceWarning is logged
twice at the same location in the developer mode.
Add dev_mode field to _PyCoreConfig.
https://bugs.python.org/issue32089