On 2016-05-08 03:14, Stephen Hansen wrote:
On Sat, May 7, 2016, at 06:16 PM, DFS wrote:
Why is it better to zip() them up and use:
for item1, item2, item3 in zip(list1, list2, list3):
do something with the items
than
for j in range(len(list1)):
do something with list1[j], list2[j], list3[j], etc.
Although Chris has a perfectly good and valid answer why conceptually
the zip is better, let me put forth: the zip is simply clearer, more
readable and more maintainable.
This is a question of style and to a certain degree aesthetics, so is
somewhat subjective, but range(len(list1)) and list1[j] are all
indirection, when item1 is clearly (if given a better name then 'item1')
something distinct you're working on.
+1
If you're iterating through multiple sequences in parallel, zip is the
way to go.
--
https://mail.python.org/mailman/listinfo/python-list
