How to join every sublist to a single string in Python?

Question

MWE: Here is the list :

L=[[\'1\', \'1\', \'0\', \'0\', \'0\'],[\'1\', \'1\', \'1\', \'1\', \'0\'],[\'0\', \'0\', \'1\', \'1\', \'0\']]
<         


        

Answer 1

flat list can be made through reduce easily.

All you need to use initializer - third argument in the reduce function.

reduce(
   lambda result, _list: result.append(''.join(_list)) or result, 
   L, 
   [])

or map and reduce in combination,

import operator
map(lambda l: reduce(operator.iconcat, l), L)

Above code works for both python2 and python3, but you need to import reduce module as from functools import reduce. Refer below link for details.

• for python2

• for python3