Why not Python?

What's wrong with Python?

>>4
Yes, we all indent our code, but sometimes we indent it differently.  For example, in scheme we might write a very small function on one line (if we even bother giving it a name).  Which segues to the next point - lambdas in python are only allowed one expression, no full statements or control structures.  Finally, Guido does not believe in optimizing tail calls in recursive functions¹.

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[1] - http://mail.python.org/pipermail/python-dev/2004-July/046171.html