Traversing two strings at a time python

Question

I have two strings and I want to print them one character at a time alternatively. Like say

s1 = \"Hi\"
s2 = \"Giy\"

for c,d in s1,s2:
    print c
    print         


        

Answer 1

Here's an explanation of why that doesn't work:

When you write:

for c, d in s1, s2:
    # ...

It means:

for c, d in [s1, s2]:
    # ...

Which is the same as:

for s in [s1, s2]:
    c, d = s
    # ../

When s is Hi, the letters get unpacked into c and d - c == 'H', d == 'i'. When you try to do the same thing with Giy, python cannot unpack it, since there are three letters but only two variables.

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As already mentioned, you want to use zip_longest