Iterating over list of dictionaries

Question

I have a list -myList - where each element is a dictionary. I wish to iterate over this list but I am only interesting in one attribute - 'age' - in each dictionary each time. I am also interested in keeping count of the number of iterations.

I do:

for i, entry in enumerate(myList):     print i;     print entry['age'];  

But was wondering is there something more pythonic. Any tips?

Answer 1

You could use a generator to only grab ages.

# Get a dictionary  myList = [{'age':x} for x in range(1,10)]  # Enumerate ages for i, age in enumerate(d['age'] for d in myList):      print i,age 

And, yeah, don't use semicolons.

Answer 2

Very simple way, list of dictionary iterate

>>> my_list [{'age': 0, 'name': 'A'}, {'age': 1, 'name': 'B'}, {'age': 2, 'name': 'C'}, {'age': 3, 'name': 'D'}, {'age': 4, 'name': 'E'}, {'age': 5, 'name': 'F'}]  >>> ages = [li['age'] for li in my_list]  >>> ages [0, 1, 2, 3, 4, 5]