PdfParser: Don't use list as def in read_prev_trailer#9629
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It's not recommended to use the empty list as default value in functions or methods because Python interpreter evaluates during parsing, so it will be the same list for different calls. https://pylint.pycqa.org/en/latest/user_guide/messages/warning/dangerous-default-value.html
radarhere
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May 13, 2026
Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>
radarhere
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Backporting this patch into some openSUSE distro I've detected that it adds an empty list as a default value in a method.
It's not recommended to use the empty list as default value in functions or methods because Python interpreter evaluates during parsing, so it will be the same list for different calls.
https://pylint.pycqa.org/en/latest/user_guide/messages/warning/dangerous-default-value.html