Python: use izip for iterating over multiple lists

I know I'll forget this again, so I'll blog it.
from itertools import izip

xlist = [1, 2, 3]
ylist = [5, 6, 7]

for x, y in izip(xlist, ylist):
print x, y

Outputs:
1 5
2 6
3 7
This also works for more than two lists. Zip() and map() also work but izip() should use less memory and perh

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