[Python-Dev] method decorators (PEP 318) (original) (raw)

Walter Dörwald walter at livinglogic.de
Fri Mar 26 17:28:49 EST 2004

Guido van Rossum sagte:

[Walter Doerwald]

For me '@' looks like something that the compiler shouldn't see. I don't understand. Why? Is that what @ means in other languages? Not in JDK 1.5 -- the compiler definitely sees it.

@ has no meaning in current Python and is seldom used in normal text, so it seems to be perfect for an escape character that is used by a documentation extractor or preprocessor, i.e. for markup that is somehow "orthogonal" to the program source. But as part of a normal Python source it feels like a wart.

How about:

def foobar(self, arg): .author = AuthorInfo(author="GvR", version="1.0", copyright="GPL", ...) .deprecated = True No, I want to reserve the leading dot for attribute assignment to a special object specified by a 'with' statement, e.g. with self: .foo = [1, 2, 3] .bar(4, .foo)

I know, but inside a function the leading dot could default to function attribute assigment in the absence of a with statement.

That makes me wonder, what a leading dot should mean at class or module scope.

Bye, Walter Dörwald

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