fix: Revert change to write_timestamp - #423
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This was changed due to ruff rule SIM115, which flagged that a context manager should be used to write to the timestamp file. 12eadba However, on windows, writing to a file while there's already an open handle to it _sometimes_ errors. The tests passed, but a user has encountered the error now. The previous workaround was a bit odd, and involved opening a temp file with delete=False, immediately closing it, writing to it and then manually cleaning it up afterwards. A cleaner and more ruff-friendly way is to use a temp directory instead, and write to a file inside it without opening the file.
evansd
approved these changes
Aug 12, 2026
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This was changed due to ruff rule SIM115, which flagged that a context manager should be used to write to the timestamp file.
12eadba
However, on windows, writing to a file while there's already an open handle to it sometimes errors. The tests passed, but a user has encountered the error now.
The previous workaround was a bit odd, and involved opening a temp file with
delete=False, immediately closing it, writing to it and then manually cleaning it up afterwards. A cleaner and more ruff-friendly way is to use a temp directory instead, and write to a file inside it without opening the file.Related Slack thread:
https://bennettoxford.slack.com/archives/C0270Q313H7/p1786459860969619