Python3: how to use for loop to get values from two list

Question

My code:

i=[o for o in range(10000)]
ii=[o for o in range(10000,20000)]

for a,b in i,ii:
    print(a,b)

But the above code returns error (too many values to unpack)

I want to get the result as:

1 10001
2 10002
 ...........
10000 20000

I want to use this to create a download and upload parallel.

score 1 · Answer 1 · answered Jul 28 '18 at 15:59

1

Use zip

i=[o for o in range(10000)]
ii=[o for o in range(10000,20000)]

for a,b in zip(i,ii):
    print(a,b)

Shorter

for a,b in zip(range(10000), range(10000,20000)):
    print(a,b)

answered Jul 28 '18 at 15:59

Rakesh

For the lists you provided, I am not sure if you need two lists. Following generates only one array of numbers: `for a in range(10000): print(a,a+10000)` – Sheldore Jul 29 '18 at 23:18

1 Answers1