How to check if a sequence in a tuple is part of a tuple? python

Asked Apr 03 '18 at 19:36

Active Apr 03 '18 at 19:36

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This might be a silly question, but is it possible to check whether the elements in a tuple1 are a subset of another tuple2 in the same sequence as they appear in tuple1? I tried to do this with .issubset, but this does not look at whether the sequence of tuple1 is in tuple 2:

tuple1 = ([1, 2, 3])
tuple2 = ([1, 2, 3, 4, 5])
set(tuple1).issubset(tuple2)
True

tuple1 = ([1, 2, 3])
tuple2 = ([1, 3, 2, 4, 5])
set(tuple1).issubset(tuple2)
True                         # Only membership is considered, not sequence

What I would like is:

tuple1 = ([1, 2, 3])
tuple2 = ([1, 2, 3, 4, 5])
(tuple1).sequenceisin(tuple2)
True

tuple1 = ([1, 2, 3])
tuple2 = ([1, 3, 2, 4, 5])
(tuple1).sequenceisin(tuple2)
False

Is there a simple way to do this?

asked Apr 03 '18 at 19:36

twhale

You have a tuple with a list inside it! Is that intentional? – Anton vBR Apr 03 '18 at 19:38
4

Actually it's not even a tuple as written- it's just a list. – pault Apr 03 '18 at 19:39
Yes, that is intentional. Tuple1 actually contains many such list/ sequences which I want to test on tuple2. – twhale Apr 03 '18 at 19:39
3

actually, he doesn't have a tuple. when you have only one element inside the parentheses the item will not be a tuple unless you use a trailing comma – Victor Ribeiro da Silva Eloy Apr 03 '18 at 19:40
tuples or lists it's a duplicate. – Jean-François Fabre Apr 03 '18 at 19:43
Yes you are correct, my mistake! – Anton vBR Apr 03 '18 at 19:46

How to check if a sequence in a tuple is part of a tuple? python

0 Answers0