Python's biggest compromises

Beni Cherniavsky cben at tx.technion.ac.il
Sun Aug 3 11:36:21 CEST 2003


anthony_barker at hotmail.com (Anthony_Barker) wrote:
> What to you think python largest compromises are?
> 
As everybody said, whitespace, dynamic typing and interpretedness are
not
compromises.

One real compromise is the fact that you can't rebind an outer
variable from a
closure.  That allows lexical scoping without any variable declrations
at the
price of giving up a useful ability of closures.  When you do want it,
you must
either use the singleton list hack (but charactertistically, it isn't
used even
once in the standard library - I once performed an almost reliable
search), or
turn your nested function into a class just for that, which is
annoying (see
Java <wink>).  It's noty impossible to fix, it will just require some
sort of "declration" (per assignment, per variable per function (like
``global``) or per
function) for the cases when you want this).




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