Fix violations of Flake8 Bugbear B037 #3038

Job	Run time
Pylint	2m 0s
Flake8	21s
Mypy	1m 43s
Documentation	1m 56s
Tests for downstream project Firedrake	15m 28s
Tests for downstream project arraycontext	2m 51s
Tests for downstream project meshmode	14m 25s
Conda Examples	2m 20s
Conda Pytest with Intel CL	4m 5s
Tests for downstream project grudge	8m 16s
Conda Pytest (ubuntu-latest)	4m 29s
Tests for downstream project pytential	45m 39s
Conda Pytest (macos-latest)	6m 5s
Tests for downstream project pytato	5m 18s
Conda Pytest without arg check	4m 35s
Conda Pytest Twice (for cache behavior)	5m 46s
	2h 5m 17s

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