Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Python Collections (Retired) Dictionaries String Formatting with Dictionaries

Peter Lynch
Peter Lynch
946 Points
Posted by Peter Lynch
Peter Lynch
946 Points

I can't figure out why this isn't passing. Think I'm close.

It is working in idle not sure what's wrong here.

strings.py 
dicts = [
    {'name': 'Michelangelo',
     'food': 'PIZZA'},
    {'name': 'Garfield',
     'food': 'lasanga'},
    {'name': 'Walter',
     'food': 'pancakes'},
    {'name': 'Galactus',
     'food': 'worlds'}
]

string = "Hi, I'm {name} and I love to eat {food}!"

def string_factory(string, dicts):
  strings = []
  for keys in dicts:
    strings.append(string.format(**keys))
  return strings

2 Answers

William Li
PLUS
William Li
Courses Plus Student 26,865 Points
William Li
William Li
Courses Plus Student 26,865 Points

So very close actually. Function body is totally correct, only thing you need to do is switch place the 2 arguments pass in for the function definition, dicts first, string comes second.

Create a function named string_factory that accepts a list of dictionaries and a string.

def string_factory(dicts, string):
  strings = []
  for keys in dicts:
    strings.append(string.format(**keys))
  return strings
Peter Lynch
Peter Lynch
946 Points
Peter Lynch
Peter Lynch
946 Points

Thanks William. I didn't realise the order of the arguments was important.