Python Accessing Values in A List of Dictionaries

Question

Say I have a List of dictionaries that have Names and ages and other info, like so:

thisismylist= [  
              {\'Name\': \'Albert\' , \'Age\': 16},
          


        

Answer 1

If you want a list of those values:

>>> [d['Name'] for d in thisismylist]
['Albert', 'Suzy', 'Johnny']

Same method, you can get a tuple of the data:

>>> [(d['Name'],d['Age']) for d in thisismylist]
[('Albert', 16), ('Suzy', 17), ('Johnny', 13)]

Or, turn the list of dicts into a single key,value pair dictionary:

>>> {d['Name']:d['Age'] for d in thisismylist}
{'Johnny': 13, 'Albert': 16, 'Suzy': 17}

So, same method, a way to print them:

>>> print '\n'.join(d['Name'] for d in thisismylist)
Albert
Suzy
Johnny   

And you can print it sorted if you wish:

>>> print '\n'.join(sorted(d['Name'] for d in thisismylist))
Albert
Johnny
Suzy

Or, sort by their ages while flattening the list:

>>> for name, age in sorted([(d['Name'],d['Age']) for d in thisismylist],key=lambda t:t[1]):
...    print '{}: {}'.format(name,age)
... 
Johnny: 13
Albert: 16
Suzy: 17