c/comparison.py: make docstring a raw string. #33
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The docstring describing the deltaE function contains several mathematical symbols with LaTeX-style syntax, causing python3.12 and newer to throw SyntaxWarning, like reported in issue njsmith#32, or like [Debian bug #1085424]. Converting it to raw string prevents attempts to interpret the backslash character as if it were an invalid escape sequence in a C string. [Debian bug #1085424]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1085424 Signed-off-by: Étienne Mollier <[email protected]>
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The docstring describing the deltaE function contains several mathematical symbols with LaTeX-style syntax, causing python3.12 and newer to throw SyntaxWarning, like reported in issue #32, or like Debian bug #1085424. Converting it to raw string prevents attempts to interpret the backslash character as if it were an invalid escape sequence in a C string.