[['2.0'], ['1.5'], ['1.4'], ['2.1'], ['2.2'], ['2.4'], ['3.0'], ['1.1'], ['1.0'], ['1.6']]
and I need it to be ['2.0','1.5', etc]
How to fix it?
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Willem Van Onsem
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Maria Luht
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Simply use list comprehension with sequence assignment:
final_list = [x for x, in original_list]Mind the comma (,) in the list comprehension, which is essential.
Here we make the assumption that there is only one element in each sublist. Python will check this and error if it is not the case. This can be desired behavior (or perhaps you want to concatenate the elements).
Example:
>>> original_list = [['2.0'], ['1.5'], ['1.4'], ['2.1'], ['2.2'], ['2.4'], ['3.0'], ['1.1'], ['1.0'], ['1.6']]
>>> final_list = [x for x, in original_list]
>>> final_list
['2.0', '1.5', '1.4', '2.1', '2.2', '2.4', '3.0', '1.1', '1.0', '1.6']
Willem Van Onsem
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Still can't get it fixed :( – Maria Luht Mar 19 '17 at 23:18
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Maybe it would be easier to go back to the point where the program reads a line from a file and needs to split the elements into different lists? – Maria Luht Mar 19 '17 at 23:20
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Example of a line: strawberry 2.0 – Maria Luht Mar 19 '17 at 23:21
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@MariaLuht: I suggest you edit your question with all relevant information, the code thus far and a clearer problem statement. – Willem Van Onsem Mar 19 '17 at 23:22
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You can try something like this :
item_list = [['2.0'], ['1.5'], ['1.4'], ['2.1'], ['2.2'], ['2.4'], ['3.0'], ['1.1'], ['1.0'], ['1.6']]
print([item for sub_list in item_list for item in sub_list])
This will result in :
['2.0', '1.5', '1.4', '2.1', '2.2', '2.4', '3.0', '1.1', '1.0', '1.6']
Satish Prakash Garg
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Can you write it black and white? I'm really really really dumb at programming :D – Maria Luht Mar 19 '17 at 22:54
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