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+--- Thread: Lists (/thread-7230.html)
Lists - zowhair - Dec-29-2017
Dear friends can you please help me???
vec = [[1,2,3],[4,5,6],[7,8,9,0]] print([num for elem in vec for num in elem]) **huh**what does the second statement meant?
RE: Lists - Windspar - Dec-29-2017
It a list expression:
Equal to
vec = [[1,2,3],[4,5,6],[7,8,9,0]] output = [] for elem in vec: for num in elem: output.append(num) print(output)
RE: Lists - Larz60+ - Dec-29-2017
And it's called a list comprehension explained here: https://www.programiz.com/python-programming/list-comprehension
or here: http://www.pythonforbeginners.com/basics/list-comprehensions-in-python