[Python-Dev] Let's just keep lambda (original) (raw)

"Martin v. Löwis" martin at v.loewis.de
Thu Feb 9 17:39:31 CET 2006

Jiwon Seo wrote:

Apparently, simplest example is,

collection.visit(lambda x: print x)

Ok. I remotely recall Guido suggesting that print should become a function.

It's not a specific example though: what precise library provides the visit method?

which currently is not possible. Another example is,

map(lambda x: if odd(x): return 1 else: return 0, listOfNumbers)

Hmm. What's wrong with

map(odd, listOfNumbers)

or, if you really need ints:

map(lambda x:int(odd(x)), listOfNumbers)

Also, anything with exception handling code can't be without explicit function definition.

collection.visit(lambda x: try: foo(x); except SomeError: error("error message"))

That's not a specific example.

Regards, Martin

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