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Python

Posted by Brandon Pharis
Brandon Pharis
1,773 Points

Dictionaries challenge task string_factory

i can not figure this out. I looked at the forum and someone else had the same problem.

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

it says that format() has to use mapping, not a list. im not sure what this means and tried troubleshooting online.

Brandon Pharis
Brandon Pharis
1,773 Points

sorry i havnt figured out how to show the code properly in a comment. Its all jumbled together

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Brandon,

I fixed your code for you.

This thread will show you how to post code properly: https://teamtreehouse.com/forum/posting-code-to-the-forum

Also, it's a good idea to link to the challenge you're on so anyone can review it if they need to.

2 Answers

Juan Martin
Juan Martin
14,335 Points

Hello Brandon, I've checked your code, this is what happened:

  • In the for loop you have to use "for items in range(len(dicts))" to specify the number of times it will go.
  • While appending, you should append "string.format(**mydicts)" using the index "item" used in the "for" loop as the index of the dictionary.

Let me show you what I mean:

def string_factory(dicts,string):
  result_list = []
  for item in range(len(dicts)):
    result_list.append(string.format(**dicts[item]))
  return result_list

By the way, to insert code, here's a forum thread about it: https://teamtreehouse.com/forum/how-to-type-code-in-the-forum

Hope this helps :)

Brandon Pharis
Brandon Pharis
1,773 Points

Oh okay. So it had to be specified what i was trying to append after the (**dicts). Thanks for the help and also for the link to how to type code in the forum! :)

Juan Martin
Juan Martin
14,335 Points

You're welcome Brandon :) ! I'm glad I could help you! Have a great day!

Chris Christensen
Chris Christensen
9,281 Points
Chris Christensen
Chris Christensen
9,281 Points

Frustration rant. I have to be honest. I don't think that the video goes far enough in explaining packing and unpacking in a way that helps to solve this challenge. I've watched the video several times and it doesn't come close to explaining packing and unpacking in a way that helps with this challenge.

With other parts of this course rewatching videos has been helpful in understanding the material. This video should be revisited because I'm sure I'm not the only person struggling with this.

Don't get me wrong. I love the course and I've learned a lot. Just venting a bit. :/