https://bugs.kde.org/show_bug.cgi?id=476708
Bug ID: 476708
Summary: valgrind-monitor.py regular expressions should use raw
strings
Classification: Developer tools
Product: valgrind
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: m...@klomp.org
Target Milestone: ---
/usr/share/gdb/auto-load/valgrind-monitor-def.py:214: SyntaxWarning: invalid
escape sequence '\['
if re.fullmatch("^0x[0123456789ABCDEFabcdef]+\[[^\[\]]+\]$", arg_str):
Loaded /usr/share/gdb/auto-load/valgrind-monitor.py
According to
https://docs.python.org/dev/whatsnew/3.12.html#other-language-changes
A backslash-character pair that is not a valid escape sequence now generates a
SyntaxWarning, instead of DeprecationWarning. For example,
re.compile("\d+\.\d+") now emits a SyntaxWarning ("\d" is an invalid escape
sequence, use raw strings for regular expression: re.compile(r"\d+\.\d+")). In
a future Python version, SyntaxError will eventually be raised, instead of
SyntaxWarning. (Contributed by Victor Stinner in gh-98401.)
Using a raw string does indeed get rid of the SyntaxWarning:
if re.fullmatch(r"^0x[0123456789ABCDEFabcdef]+\[[^\[\]]+\]$", arg_str):
Probably all regexps should use raw strings if they contain escape sequences.
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