Draft Pep (was: Re: Let's Talk About Lambda Functions!)
Tim Peters
tim.one at comcast.net
Mon Aug 5 13:01:51 EDT 2002
[Bryan Olson, reading a lot into
def define_twice():
def _twice(x):
return x + x
return _twice
print define_twice()(17)
]
> Check the rules on local variables. The function was, at one
> time, bound to the name _twice. Nevertheless, the above code
> passes 17 to a function that is not bound to any name.
Nevertheless, it "has a name" (namely "_twice"), as you can see by doing
print define_twice().__name__
and that's very helpful in tracebacks:
print define_twice()({1: 2})
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