How to join a 3 dimensional array into a normal array?

Question

I have a 3D array with lists in lists but i want each seperate list to become just one value in the list.

eg.

[['q', 'w', 'e'], ['w', 'e', 'r'], ['e', 'r', 't'], ['r', 't', 'y']]

is my 3D array with lists in lists and i want to convert this list into:

[qwe, wer, ert, rty]

effectively joining up the lists into 1 element in the list.

Is there a simple way to do this?

willeM_ Van Onsem · Accepted Answer · 2018-02-01 21:53:51Z

2

You can join these together with ''.join, and we can define a mapping over it:

>>> list(map(''.join, data))
['qwe', 'wer', 'ert', 'rty']

answered Feb 1, 2018 at 21:53

willeM_ Van Onsem

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Comments

zamir · Accepted Answer · 2018-02-02 00:08:55Z

2

You can do something like:

>>> [['q', 'w', 'e'], ['w', 'e', 'r'], ['e', 'r', 't'], ['r', 't', 'y']]
>>> [''.join(l) for l in _]

Output:

['qwe', 'wer', 'ert', 'rty']

answered Feb 1, 2018 at 21:53

zamir

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That is not the output, but the input.