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How do you transpose a matrix without using numpy or zip or other imports?

I thought this was the answer but it does not work if the matrix has only 1 row...

[[row[i] for row in data] for i in range(len(data[1]))]

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  • do you mean one row like m=[1,2,3] or m=[[1,2,3]] ? Commented Feb 27, 2014 at 20:48
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    [1] should be [0] .... [[row[i] for row in data] for i in range(len(data[0]))] Commented Feb 27, 2014 at 20:49
  • cmd you are totally right, thanks for catching that it was driving me nuts Commented Feb 27, 2014 at 20:58

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[[row[i] for row in data] for i in range(len(data[0]))]

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