ANN: Pyrex 0.4.3
Skip Montanaro
skip at pobox.com
Tue Aug 27 10:54:51 EDT 2002
Matthias> What's the reason of introducing a new language construct
Matthias> instead of transforming the old one into a pure C loop
Matthias> wherever possible?
Because Python is highly dynamic:
>>> def myrange(x,y=None,z=None):
... return [4.0]
...
>>> import __builtin__
>>> __builtin__.range = myrange
>>> for i in range(12):
... print i
...
4.0
When compiling, you can't assume anything about the input parameters or
return value of range(). You need a new construct which says, "this is how
to enumerate the integers between x and y."
--
Skip Montanaro
skip at pobox.com
consulting: http://manatee.mojam.com/~skip/resume.html
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