[Python-Dev] iterzip() (original) (raw)

Barry A. Warsaw barry@zope.com
Sun, 28 Apr 2002 21:05:42 -0400

"RH" == Raymond Hettinger <python@rcn.com> writes:

RH> IMHO, This is a better way to loop over multiple sequences and
RH> has a chance at becoming the tool of choice.  I scanned all of
RH> my Python code and found that iterzip() was a better choice in
RH> every case except a matrix transpose coded as zip(*mat).

I'd much rather see a patch that just changed zip() to be an iterator instead of adding an iterzip(). I doubt that much in-field code would break because of it (but write the PEP to find out. ;).

RH> Ditto.  Any chance of moving functions like map(), reduce(),
RH> and filter() to a functional module; pow() and divmod() to the
RH> math module; or input() to oblivion?

"GvR" == Guido van Rossum <guido@python.org> writes:

GvR> I wish.  Since they were there first, it's hard to get rid of
GvR> them.  (If you're truly masochist, write a PEP and post it to
GvR> c.l.py to find out how hard. :-)

The PEP would have to specify a migration plan, i.e. the builtins are identical to the functional module versions, and would a deprecation schedule, etc.

-Barry