Python Lists: .lower() attribute error

Question

I am trying to create a program on python to do with manipulating lists/arrays. I am having trouble with an error:

lowercase = names.lower

Answer 1

Like the error message says, you can't use .lower() on lists, only on strings. That means you'll have to iterate over the list and use .lower() on every list item:

lowercase = [x.lower() for x in names]

Answer 2

The variable names is a list. You can't use the .lower() method on a list.

pp_ provided the solution:

lowercase = [x.lower() for x in names]

While not exactly equivalent to the previous example, this may read better to you and has, effectively, the same result:

lowercase=[]
for name in names:
    lowercase.append(name.lower())

Alternate solution that may fit your needs:

print (str(names).lower())