Why is print(x)
here not valid (SyntaxError
) in the following list-comprehension?
my_list=[1,2,3]
[print(my_item) for my_item in my_list]
To contrast - the following doesn't give a syntax error:
def my_func(x):
print(x)
[my_func(my_item) for my_item in my_list]
Because print is not a function, it's a statement, and you can't have them in expressions. This gets more obvious if you use normal Python 2 syntax:
my_list=[1,2,3]
[print my_item for my_item in my_list]
That doesn't look quite right. :) The parenthesizes around my_item tricks you.
This has changed in Python 3, btw, where print is a function, where your code works just fine.