I read from stdin the following type of strings in Python:
"[['A', '0', '12.0'], ['A', '1', '10.0'], ['B', '1', '10.0']]"
How can I turn them into a list of lists?
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3That is a list of lists!gtlambert– gtlambert2016-03-07 10:29:15 +00:00Commented Mar 7, 2016 at 10:29
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1Congratulations, you did it already.Joe T. Boka– Joe T. Boka2016-03-07 10:29:45 +00:00Commented Mar 7, 2016 at 10:29
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My bad. I changed the post. Those are strings that I read and I want to turn them into lists of listsharry77– harry772016-03-07 10:31:01 +00:00Commented Mar 7, 2016 at 10:31
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...that's still a list of lists of strings. Please give a minimal reproducible example that actually reflects the problem you're trying to solve.jonrsharpe– jonrsharpe2016-03-07 10:32:04 +00:00Commented Mar 7, 2016 at 10:32
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2 Answers
If you mean you have that in a string, use ast.literal_eval():
>>> s = "[['A', '0', '12.0'], ['A', '1', '10.0'], ['B', '1', '10.0']]"
>>> import ast
>>> ast.literal_eval(s)
[['A', '0', '12.0'], ['A', '1', '10.0'], ['B', '1', '10.0']]
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new_list = eval("[['A', '0', '12.0'], ['A', '1', '10.0'], ['B', '1', '10.0']]")
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