Python 3.12+ emits SyntaxWarning for unrecognised backslash escapes (and
these will eventually become SyntaxErrors). Convert the affected string
literals to raw strings so the escapes are explicit:
- scriptinterface.py: filename filter regexes (\.der, \.b64, ...).
- obok.py: MAC-address detection regexes (\s, \-) and the title
sanitiser ([^\s\w]).
- flatxml2svg.py: the emitted JavaScript snippet contains \? and \d but
also a trailing newline, so the regex part is made a raw string and
the "\n" is concatenated separately.
All changes are value-preserving (an unrecognised escape already evaluated
to the backslash plus the character); verified the emitted JS string and
the compiled regexes are unchanged, and that both plugins now compile with
zero SyntaxWarnings.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Now the plugin ZIP file (DeDRM_plugin.zip) can be run with a normal
Python interpreter as if it were a Python file (try
`python3 DeDRM_plugin.zip --help`). This way I can begin building a
standalone version (that can run without Calibre) without having to
duplicate a ton of code.
THIS IS ON THE MASTER BRANCH. The Master branch will be Python 3.0 from now on. While Python 2.7 support will not be deliberately broken, all efforts should now focus on Python 3.0 compatibility.
I can see a lot of work has been done. There's more to do. I've bumped the version number of everything I came across to the next major number for Python 3.0 compatibility indication.
Thanks everyone. I hope to update here at least once a week until we have a stable 7.0 release for calibre 5.0
JMR-devandClaude Opus 4.8