Extract multidict keys to a list in Python
Here, we are Creating an empty list, and then using a Python for loop we append only the key of a multidict.
Python3
# Import module 'Multidict' import multidict # create a multidict d = multidict.MultiDict([('a', 1), ('b', 2), ('b', 3), ('c', 5), ('d', 4), ('c', 7)]) # create two blank lists to store the keys list_for_key_of_multidict = [] # Loop through the multidict structure # using "items" method Use append method # of list to add respective keys and # values of multidict for k, v in d.items(): # place the keys in separate list list_for_key_of_multidict.append(k) # print the lists print("List of keys of multidict:", list_for_key_of_multidict) |
Output:
List of keys of multidict: [‘a’, ‘b’, ‘b’, ‘c’, ‘d’, ‘c’]
Extract multidict values to a list in Python
The Multidict, is a dictionary-like structure, having key-value pairs, but the ‘same key’ can occur multiple times, in the collection. The features of a Multidict in Python are as follows:
- The insertion order of the collection is maintained.
- Multiple values in the collection can have the same key.
- The keys are stored as a ‘string’.
Installation
pip install multidict