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

sowmya c
sowmya c
6,966 Points
Posted by sowmya c
sowmya c
6,966 Points

unpacking a dictionary

we have to return a new string using the string_factory and template

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!"]


def string_factory(**kwargs):

    values = [{"name": "Michelangelo", "food": "PIZZA"}, {"name": "Garfield", "food": "lasagna"}]

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

    new_list = []
    new_list.append (template.format(values["name"], values["food"]))
    return new_list

3 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

You have many of the correct ideas.

Remember that the function takes a single argument that will be similar to the values list shown in the challenge code comments. Don't overwrite the values argument by redefining it the inside of the function. Your function should:

  • loop through the values list
  • use each dict to format the template string
  • return a list of these formatted strings

Post back if you need more help. Good luck!!!

Elad Ohana
Elad Ohana
24,456 Points
Elad Ohana
Elad Ohana
24,456 Points

Hi,

You do not need to add a values variable for the challenge, it is designed to be passed into your function. Since you are looking for a dictionary to be passed in, you should not put the ** as part of the **kwargs argument, since the function will try to interpret what's in the values themselves, instead of using them as the list of the dictionaries. Also, the names are defined in the template string as well as in the dictionary that will be passed into kwargs. Finally, you are looking to return a list of multiple strings with the values filled in, which can't be done with a single append statement.

sowmya c
sowmya c
6,966 Points
sowmya c
sowmya c
6,966 Points 
def string_factory():
    values = [{"name": "Michelangelo", "food": "PIZZA"}, {"name": "Garfield", "food": "lasagna"}]
    template = "Hi, I'm {name} and I love to eat {food}!"
    sow = []
    for value in values:
        sow = template.format(**name, **food)
    return sow

THIS IS ALSO GIVING ERROR

[MOD: added ```python formatting -cf]

Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

You're almost there. Remember to keep the parameter values in the definition and not redefine it inside the function. Also

  • When using format, use the argument **value
  • use .append when assigning sow so that a list is returned