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Python Introducing Dictionaries Iterating and Packing with Dictionaries Recap of Iterating and Packing with Dictionaries

Jorge Grajeda
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Jorge Grajeda
Python Development Techdegree Graduate 8,186 Points
Posted by Jorge Grajeda
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Jorge Grajeda
Python Development Techdegree Graduate 8,186 Points

How would I answer this problem?

May somebody please explain a little bit more in depth on these keys and values for this problem?

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

If given:

some_dict = {
    ‘key1’: ‘value1’,
    ‘key2’: ‘value2’,
    ‘key3’: ‘value3’,
    }

There are three ways to iterate on a somedict:

  • iterate over the keys using dict.keys() 
# default method. same as using
#     for key in some_dict:
for key in some_dict.keys():
    print(key)

# output
‘key1’
‘key2’
‘key3’
  • iterate over the values using dict.values() 
for value in some_dict.values():
    print(value)

# output
‘value1’
‘value2’
‘value3’
  • iterate over both the keys and values using dict.items() 
for key, value in some_dict.items():
    print(key, value)

# output
‘key1’ ‘value1’
‘key2’ ‘value2’
‘key3’ ‘value3’

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