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merge with 3.3

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Georg Brandl 2013-10-06 10:28:48 +02:00
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Doc/faq/design.rst
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@ -347,20 +347,20 @@ Answer 2: Fortunately, there is `Stackless Python <http://www.stackless.com>`_,
which has a completely redesigned interpreter loop that avoids the C stack.
Why can't lambda forms contain statements?
------------------------------------------
Why can't lambda expressions contain statements?
------------------------------------------------
Python lambda forms cannot contain statements because Python's syntactic
Python lambda expressions cannot contain statements because Python's syntactic
framework can't handle statements nested inside expressions. However, in
Python, this is not a serious problem. Unlike lambda forms in other languages,
where they add functionality, Python lambdas are only a shorthand notation if
you're too lazy to define a function.
Functions are already first class objects in Python, and can be declared in a
local scope. Therefore the only advantage of using a lambda form instead of a
local scope. Therefore the only advantage of using a lambda instead of a
locally-defined function is that you don't need to invent a name for the
function -- but that's just a local variable to which the function object (which
is exactly the same type of object that a lambda form yields) is assigned!
is exactly the same type of object that a lambda expression yields) is assigned!
Can Python be compiled to machine code, C or some other language?