Hi All,
I am quite new to programming and have been playing with Pythons list comprehension feature. I executed the following code and got an unexpected result.
I expected even_squares to simply hold a list of the squares for the 3 even numbers. Instead, it just holds the square of 6 three times.
I expect there is a very simple explanation for this and I am kicking myself for not seeing it. Can anyone help?
I am quite new to programming and have been playing with Pythons list comprehension feature. I executed the following code and got an unexpected result.
Code:
>>> nums = [1, 2, 3, 4, 5, 6]
>>> print nums
[1, 2, 3, 4, 5, 6]
>>> even_squares = [n * n for num in nums if num % 2 == 0]
>>> print even_squares
[36, 36, 36]I expected even_squares to simply hold a list of the squares for the 3 even numbers. Instead, it just holds the square of 6 three times.
I expect there is a very simple explanation for this and I am kicking myself for not seeing it. Can anyone help?
