Combine a 2D array into 1D without numpy
Question:
The result of a list comprehension:
[['a', 'b', 'c'], ['ab', 'ac', 'bc'], ['abc']]
The challenge is to convert this into a single list, on one line, importing only itertools (if it helps)
Answers:
The easy way is with itertools.chain.from_iterable:
>>> import itertools
>>> list(itertools.chain.from_iterable([['a', 'b', 'c'], ['ab', 'ac', 'bc'], ['abc']]))
['a', 'b', 'c', 'ab', 'ac', 'bc', 'abc']
The result of a list comprehension:
[['a', 'b', 'c'], ['ab', 'ac', 'bc'], ['abc']]
The challenge is to convert this into a single list, on one line, importing only itertools (if it helps)
The easy way is with itertools.chain.from_iterable:
>>> import itertools
>>> list(itertools.chain.from_iterable([['a', 'b', 'c'], ['ab', 'ac', 'bc'], ['abc']]))
['a', 'b', 'c', 'ab', 'ac', 'bc', 'abc']