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I should rest all this rip, but I can't help it: reference to multi-line lambdas in languages with Python-like syntax: http://cobra-language.com/trac/cobra/wiki/AnonMethod, http://boo.codehaus.org/Closures (yep, you're right, having multiple closures on a single line with offsite-rule syntax is "non-trivial" and no one solved this yet, but even one per line would be enough to make map and fold bearable, and ftr, I want to punch Guido or whoever else has a saying in language's design for not "stealing" this and adopting it into Python - I think there was a PEP along the lines that got killed and burried, can't find it now).



>>I want to punch Guido or whoever else has a saying in language's design for not "stealing" this and adopting it into Python

Please relax... no tool is perfect for all situations. It is always a trade off.

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