[Python-Dev] 2.4a2, and @decorators (original) (raw)

Raymond Hettinger python at rcn.com
Mon Aug 2 18:54:35 CEST 2004

> The only real necessary restriction on the @ operator is that its > argument be callable and take a single argument. Many expressions could > return a callable object. Why not let them? Is it really worth having a > special case just to SyntaxError expressions that sometimes won't result > in an appropriate callable? > > Things someone might want to do, ordered roughly from most reasonable to > least reasonable ;) > @foo().bar() > @foo or bar > @mydecorators['foo'] > @lambda f: foo(f) or bar(f) > > Why disallow these forms? It seems quite difficult, especially, to > explain why the first one does not, or should not, work. > > James >

For what it's worth, I agree with James completely. Jp

I concur.

Raymond

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