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Python Python Collections (2016, retired 2019) Dictionaries String Formatting with Dictionaries

Posted by Sean Yau
Sean Yau
1,230 Points

Packing vs Unpacking

I'm not sure how to proceed from here. Here's what's being asked and the below is what i've tried. BIG THANK YOU!!!

Question: You've used the string .format() method before to fill in blank placeholders. If you give the placeholder a name, though, like in template below, you fill it in through keyword arguments to .format(), like this: template.format(name="Kenneth", food="tacos") Write a function named string_factory that accepts a list of dictionaries as an argument. Return a new list of strings made by using ** for each dictionary in the list and the template string provided.

string_factory.py 
# Example:
# values = [{"name": "Michelangelo", "food": "PIZZA"}, {"name": "Garfield", "food": "lasagna"}]
# string_factory(values)
# ["Hi, I'm Michelangelo and I love to eat PIZZA!", "Hi, I'm Garfield and I love to eat lasagna!"]


values = [{"name":"Sean", "food":"pizza"}]
template = "Hi, I'm {name} and I love to eat {food}!"
def string_factory(values):
    return template.format(values)
Igor Ević
Igor Ević
5,827 Points

Values is a list of dictionaries and you must create string for every dictionary in list. Output is list of strings.

def string_factory(values):
    result = []
    for value in values:
        result.append(template.format(**value))
    return result

or more pythonic:

def string_factory(values):
    return [template.format(**value) for value in values]

1 Answer

Sean Yau
Sean Yau
1,230 Points
Sean Yau
Sean Yau
1,230 Points

Thank you so much!

I didn't know you can have a method in front of 'for' loop.

How do I learn if codes are more pythonic?

Thank you so much again.