Printing each item of a variable on a separate line in Python

Question

I am trying to print a list in Python that contains digits and when it prints the items in the list all print on the same line.

print (\"{} \".format(ports))         


        

Answer 1

i have tried print ("\n".join(ports)) but does not work.

You're very close. The only problem is that, unlike print, join doesn't automatically convert things to strings; you have to do that yourself.

For example:

print("\n".join(map(str, ports)))

… or …

print("\n".join(str(port) for port in ports))

If you don't understand either comprehensions or map, both are equivalent* to this:

ports_strs = []
for port in ports:
    ports_strs.append(str(port))
print("\n".join(ports_strs))
del ports_strs

In other words, map(str, ports) will give you the list ['60', '89', '200'].

Of course it would be silly to write that out the long way; if you're going to use an explicit for statement, you might as well just print(port) directly each time through the loop, as in jramirez's answer.

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* I'm actually cheating a bit here; both give you an iterator over a sort of "lazy list" that doesn't actually exist with those values. But for now, we can just pretend it's a list. (And in Python 2.x, it was.)