How can I completely decompose a list of tuples/lists?

Question

For example:

lst = [('ABC','DEF'),('HIJ','KLM')]

To get:

>>> ['A','B','C','D','E','F','G','H','I','J','K','L','M']

Just apply the 'flatten a shallow list' recipe *twice*. – Martijn Pieters May 13 '15 at 13:33 — Martijn Pieters, May 13 '15 at 13:33
Alternately, use a "flatten recursively" recipe. – Karl Knechtel Sep 06 '22 at 05:08 — Karl Knechtel, Sep 06 '22 at 05:08

score 0 · Answer 1 · answered May 13 '15 at 13:30

0

You can use a nested list comprehension :

>>> [t for i in lst for word in i for t in word]
['A', 'B', 'C', 'D', 'E', 'F', 'H', 'I', 'J', 'K', 'L', 'M']

answered May 13 '15 at 13:30

Mazdak

1 Answers1