[Python-3000] Invalid \U escape in source code give hard-to-trace error (original) (raw)
Guido van Rossum guido at python.org
Sun Jul 15 16:17:00 CEST 2007
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When a source file contains a string literal with an out-of-range \U escape (e.g. "\U12345678"), instead of a syntax error pointing to the offending literal, I get this, without any indication of the file or line:
UnicodeDecodeError: 'unicodeescape' codec can't decode bytes in position 0-9: illegal Unicode character
This is quite hard to track down. (Both the location of the bad literal in the source file, and the origin of the error in the parser. :-) Can someone come up with a fix?
I note that raw escapes show a slightly different error. I also note that the same issue exists for u"..." literals in Python 2.5.
-- --Guido van Rossum (home page: http://www.python.org/~guido/)
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