> if [1,2]+[3,4] != [1,2,3,4]: raise TestFailed, 'list concatenation' > Since it contains ']+[' I assume it must now be parsed as a user-defined > operator, but this code currently has a meaning in Python.
Yes. I agree that this is a fatal flaw in my suggestion. Perhaps there is no syntax that can be done inside the bounds of ASCII that will please everyone and not break existing code. Your suggestion of Unicode makes a lot of sense. There are glyphs for math operators, and if Python can accept Unicode source files, that seems to me like a much better solution than hacks involving ASCII characters. I didn't notice it before, but PEP 263 allows Python source files to be Unicode: http://www.python.org/peps/pep-0263.html So the latest versions of Python already have support for Unicode source files! Could such Unicode sources be exported to ASCII for porting code to platforms that don't allow Unicode Python files? Yes: just replace the Unicode character with a symbol like __op__, where op is the operator. Actually, that's a better syntax than the one I proposed, too: __+__ # __add__ # this one's already in use, so not allowed __outer*__ -- Steve R. Hastings "Vita est" [EMAIL PROTECTED] http://www.blarg.net/~steveha -- http://mail.python.org/mailman/listinfo/python-list
