Merge pull request #54 from rthedin/f/scfix #107

Job	Run time
build-and-test (ubuntu-latest, 3.9, xvfb-run python3)	31s
build-and-test (macos-13, 3.12, python3)	43s
build-and-test (ubuntu-latest, 3.12, xvfb-run python3)	1m 10s
build-and-test (ubuntu-latest, 3.11, xvfb-run python3)	32s
build-and-test (windows-2022, 3.11, python, --user)	30s
	3m 26s

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