text: Title: Day 10 Exercises level 3 
  Body: I'm trying to solve exercise number 3,  but I can't iterate through the file: `countries_data.py`  I got this error message: `non iterable value is used in an iterating context` any ideas that could help me to solve this issue? and also How can I iterate a list of dictionaries like the one in `countries_data.py`. Thanks in advance!