(range(3),range(3)) ValueError: too many values to unpack (expected 2)

Question

for x,y in (range(3),range(3)):
    print(x+','+y)

I wont a simple output of any pare of numbers something like that:

1,1
2,2
3,3

I get:

Traceback (most recent call last):
  File "<pyshell#36>", line 1, in <module>
    for x,y in (range(3),range(3)):
ValueError: too many values to unpack (expected 2)

First of all, `range(3)` will give you at most `2`, not `3`. Also, what is the output you expect? "something like" is not precise enough. — Ulrich Eckhardt, Mar 02 '20 at 09:23
Mildly interesting: if you change `3` to `2` in your example it fails with another error :) Completly unrelated to the question. — Yevhen Kuzmovych, Mar 02 '20 at 09:23
@YevhenKuzmovych Nice exercise for the reader to figure out what `x` and `y` are then. :-) — Jan Christoph Terasa, Mar 02 '20 at 09:29

score 3 · Accepted Answer · answered Mar 02 '20 at 09:23

3

you can use the built-in method zip:

for x,y in zip(range(3),range(3)):
    print(x, y, sep=',')

answered Mar 02 '20 at 09:23

kederrac

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(range(3),range(3)) ValueError: too many values to unpack (expected 2)

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