Warning fixes #8019

Job	Run time
Path match check	6s
Python unit tests (3.6)	16m 6s
Python unit tests (3.7)	9m 39s
Python unit tests on Mac OS (3.6)	15m 55s
Python postgres unit tests	16m 33s
Python unit tests (2.7)	15m 34s
Python unit tests (3.8)	10m 10s
Python unit tests on Windows Server (3.6)	19m 9s
Python unit tests (3.9)	10m 7s
Python unit tests (3.10)	17m 36s
Python unit tests (3.11)	20m 56s
	2h 31m 51s

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