Double Iteration in List Comprehension

doubleiter4.py

>>> result = []
... for x in seq:
...     if len(seq) > 1:
...         for y in x:
...             if y != 'e':
...                 result.append(y)
... result
['a', 'b', 'c', 'd', 'f', 'g', 'h', 'i']