Language Semantics: @ symbol??

[Enigma Curry]

Sorry, for the noob question, but I haven't been able to find
documentation on this matter.

I've been looking for documentation that describes what the @function()
syntax is all about.

I've seen this on a few pages, for instance:

http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/307871

and also in TurboGears:

http://www.turbogears.com/docs/wiki20/page5.html

The general format appears to be:

@somefunction()
def a_newfunction():
....

What does it mean and what does it do?

Thanks!

 

[Brennus]

Sorry, for the noob question, but I haven't been able to find
documentation on this matter.

I've been looking for documentation that describes what the @function()
syntax is all about.

http://www.google.com/search?q=python+decorators

 

[Alex Martelli]

@somefunction()
def a_newfunction():
....

What does it mean and what does it do?

It means and does exactly the same thing as having

a_newfunction = somefunction()(a_newfunction)

right after the end of a_newfunction's body.

<http://www.python.org/doc/current/whatsnew/node6.html>


Alex

 

[James Stroud]

http://www.google.com/search?q=python+decorators

http://www.google.com/search?q=@

 

[Steven D'Aprano]

http://www.google.com/search?q=@

Doesn't work for me, I just get an (almost) empty
Google page. Doesn't even say "No results were found",
just a Google logo, some standard links in the footer,
text box, etc.

Even if Google did search for bare @ signs, surely the
first bazillion and a half hits would be email address?

 

[Peter Hansen]

Doesn't work for me, I just get an (almost) empty
Google page. Doesn't even say "No results were found",
just a Google logo, some standard links in the footer,
text box, etc.

FWIW, same here. Also the same for all other punctuation which I tried
except "*" which produces a tiny bit of something related to news, and
"&" which does in fact work "as expected" (though I now have to reset my
expectations of what should work, as apparently James does).

-Peter

 

[James Stroud]

FWIW, same here. Also the same for all other punctuation which I tried
except "*" which produces a tiny bit of something related to news, and
"&" which does in fact work "as expected" (though I now have to reset my
expectations of what should work, as apparently James does).

-Peter

Sorry, bad humor.

James