How do I extract all the values of a specific key from a list of dictionaries?

Question

I have a list of dictionaries that all have the same structure within the list. For example:

test_data = [{\'id\':1, \'value\':\'one\'}, {\'id\':2, \'value\         


        

Answer 1

You can do this:

result = map (lambda x:x['value'],test_data)