["python","string","list","function","list-comprehension"]
Apply function to each element of a list

Suppose I have a list like: mylis = ['this is test', 'another test'] How do I apply a function to each element in the list? For example, how do I apply str.upper to get: ['THIS IS TEST', 'ANOTHER TEST']
Using the built-in standard library map: >>> mylis = ['this is test', 'another test'] >>> list(map(str.upper, mylis)) ['THIS IS TEST', 'ANOTHER TEST'] In Python 2.x, map constructed the desired new list by applying a given function to every element in a list. In Python 3.x, map constructs an iterator instead of a list, so the call to list is necessary. If you are using Python 3.x and require a list the list comprehension approach would be better suited.