how to compare tuples of string in python?

Question

Is there any way to do following task in python?, i have a 2 or more tuples of string in python in that sometimes 1st string is different and all others are the same so I want output like the following-

a1=[('1','a','b','3'),('2','a','b','3')]
# yields ['1','2']

a2=[('23','j','k','l'),('2','j','k','l'), ('34','j','k','l')]
# yields ['23','2','34']

jpp · Answer 1 · 2018-03-15T12:15:20.247

1

You can use zip for this. Default result is tuple, so we convert back to list via map.

a1 = [('1','a','b','3'), ('2','a','b','3')]

res = next(map(list, zip(*a1)))

# ['1', '2']

res2 = next(map(list, zip(*a2)))

# ['23', '2', '34']

edited Mar 15 '18 at 12:15

answered Mar 15 '18 at 12:09

jpp

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`next(...)` instead of `list(...)[0]` – internet_user Mar 15 '18 at 12:13
Thank You so much – Niranajan Padyal Mar 15 '18 at 12:15
But, this does not check if other elements in the tuple are being matched each other. - what if the list is something like [('1','a','b','3'),('2','b','c','4')] ? – Niranajan Padyal Mar 15 '18 at 12:25

how to compare tuples of string in python?

1 Answers1