How to destack nested tuples in Python?

Question

How to convert the following tuple:

from:

(('aa', 'bb', 'cc'), 'dd')

to:

('aa', 'bb', 'cc', 'dd')

see http://stackoverflow.com/q/2158395/989121 for more general solutions — georg, Feb 07 '13 at 08:29

score 53 · Accepted Answer · edited Mar 31 '20 at 08:59

53

l = (('aa', 'bb', 'cc'), 'dd')
l = l[0] + (l[1],)

This will work for your situation, however John La Rooy's solution is better for general cases.

edited Mar 31 '20 at 08:59

MichaelChirico

answered Feb 07 '13 at 07:04

Volatility

I want to achieve the following : `a , b = (12 , 21) , (1,2)` . I want to get a third tuple `c = ( (12,21), (1,2) ) ` .How to do this? – Jdeep Jul 13 '20 at 15:36

score 46 · Answer 2 · edited Nov 28 '18 at 23:06

46

a = (1, 2)
b = (3, 4)

x = a + b

print(x)

Out:

(1, 2, 3, 4)

edited Nov 28 '18 at 23:06

Geeocode

answered Feb 16 '18 at 00:20

Thirumal Alagu

3

NB: This answers the title of the question, but not its body. The title of the question should have been "How to destack nested tuples" instead. – scottclowe Feb 18 '20 at 04:05

score 19 · Answer 3 · answered Feb 07 '13 at 06:49

19

>>> tuple(j for i in (('aa', 'bb', 'cc'), 'dd') for j in (i if isinstance(i, tuple) else (i,)))
('aa', 'bb', 'cc', 'dd')

answered Feb 07 '13 at 06:49

John La Rooy

`def merge_tuples(*t): return tuple(j for i in (t) for j in (i if isinstance(i, tuple) else (i,)))` to make it more generic. – komodovaran_ Aug 21 '19 at 11:56

score 8 · Answer 4 · answered Feb 07 '13 at 06:49

8

x = (('aa', 'bb', 'cc'), 'dd')
tuple(list(x[0]) + [x[1]])

answered Feb 07 '13 at 06:49

xvorsx

score 3 · Answer 5 · answered Sep 30 '21 at 20:09

3

l = (('aa', 'bb', 'cc'), 'dd')

You can simply do:

(*l[0], l[1])

Result:

('aa', 'bb', 'cc', 'dd')

answered Sep 30 '21 at 20:09

Luna

5 Answers5