[Python-Dev] Emit SyntaxWarning on unrecognized backslash escapes?

2015年2月23日 01:59:33 -0800

See topic "Unrecognized backslash escapes in string literals" in Python list [1]. I agree that this is a problem, especially for novices (but even experience users can make a typo). May be emit SyntaxWarning on unrecognized backslash escapes? An exception is already raised on invalid octal or hexadecimal escapes. '\x' is syntax error, not two characters '\\' and 'x'. 
[1] http://comments.gmane.org/gmane.comp.python.general/772455 
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