Remove list within a list and change encoding

Question

I have a list in Python 2.7 that looks like this.

[[u'ABC'], [u'DEF'], [u'GHI']]

Now, I want to convert it so it should be like this.

['ABC', 'DEF', 'GHI']

How can I do this?

There are two components to this, have you researched either of them? — jonrsharpe, May 06 '20 at 10:21
Not even sure what the second component is, this is really just flattening a list. It’s questionable why you think the leading `u` should be removed at all. — deceze, May 06 '20 at 10:23
`[val[0] for val in [[u'ABC'], [u'DEF'], [u'GHI']]]` will do, but please move to Python 3! — Bruno Vermeulen, May 06 '20 at 10:31

score 0 · Accepted Answer · answered May 06 '20 at 10:21

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If your list is named arr you can do arr = [i[0].encode('ascii') for i in arr]. Note this assumes that each element is a list of only (and at least) one item and that you aren't concerned about there being non-ASCII characters in the string

answered May 06 '20 at 10:21

awarrier99

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score 0 · Answer 2 · answered May 06 '20 at 10:33

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Welcome to Python. This is just flattening a list

flattened_list = [val[0] for val in [[u'ABC'], [u'DEF'], [u'GHI']]]
print(flattened_list)

By the way please move to Python 3!

answered May 06 '20 at 10:33

Bruno Vermeulen

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Remove list within a list and change encoding

2 Answers2