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Steven Wheeler
2,330 PointsA stupid but easy question: printing key names in a dictionary
Is there a way of only returning the key names? as in
my_dict = {'a' : 1, 'b': 2}
and I want to get back 'a' and 'b'? printing "my_dict" will return the whole dictionary and this (code below) will return every value associated to the key:
for key in my_dict:
print(my_dict[key])
But if I just want to print all the key names? I'm sure it's very simple!
2 Answers
mrben
8,068 PointsIn Python 3 my_dict.keys() will give you a dictionary view object that you can iterate over.
To get a plain old list you can use list(my_dict.keys()).
list(my_dict) also works, but the former is more explicit so you might prefer it.
Kenneth Love
Treehouse Guest Teacherfor key in my_dict:
print(key)
Looping through a dict only gets the keys.