Joining pairs of elements of a list

Question

I know that a list can be joined to make one long string as in:

x = [\'a\', \'b\', \'c\', \'d\']
print \'\'.join(x)

Obviously this would ou

Answer 1

just to be pythonic :-)

>>> x = ['a1sd','23df','aaa','ccc','rrrr', 'ssss', 'e', '']
>>> [x[i] + x[i+1] for i in range(0,len(x),2)]
['a1sd23df', 'aaaccc', 'rrrrssss', 'e']

in case the you want to be alarmed if the list length is odd you can try:

[x[i] + x[i+1] if not len(x) %2 else 'odd index' for i in range(0,len(x),2)]

Best of Luck