CODEWITHSUNDEEP
pythonlistdictionary
Virtus Pro
Virtus Pro

Reputation: 33

how to sort values from a dictionary in a list

I'm just starting to learn python. We were told about data types (integer, float, boolean), and also about sets, strings, lists etc. A little more about cycles (for/while). In my homework I need code which returns a filtered list of geo_logs containing only visits from India.

I need to do this without difficult functions, alpha or something like that. Only standard cycles.

geo_logs = [
    {'visit1': ['Moscow', 'Russia']},
    {'visit2': ['Delhi', 'India']},
    {'visit3': ['Bangalore', 'India']},
    {'visit4': ['Lisbon', 'Portugal']},
    {'visit5': ['Paris', 'France']},
    {'visit6': ['Mumbai', 'India']},
]

for visit in geo_logs:
    if visit.values() == 'India':
        print(visit.values())

but this does not return anything.

If possible, write a code and explain it. I want to understand how python works, and not just do homework.

Upvotes: 1

Views: 85

Answers (2)

Kishan
Kishan

Reputation: 1810

Try this:

for visits in geo_logs:
  for visit,[City,Country] in visits.items():
    if Country == 'India':
      print (visits)

Upvotes: 1

John Gordon
John Gordon

Reputation: 33359

.values() returns a list of all the values in the entire dictionary. Since your values are already a list, now you have a list-of-list, like [['Delhi', 'India']]

Obviously, [['Delhi', 'India']] does not equal 'India'.

Try if 'India' in list(visit.values())[0] instead.

This data structure is a bit confusing -- why do you have different keys visit1, visit2 etc. when the data is in separate dictionaries anyway? Either make them all have the same key visit, or combine them into one large dictionary.

Upvotes: 1

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