/Python/How to add element to list value in a dict python

How to add element to list value in a dict python

Python append value to dictionary list

import collections

a_dict = collections.defaultdict(list) # a dictionary key --> list (of any stuff)
a_dict["a"].append("hello")

print(a_dict)
>>> defaultdict(<class 'list'>, {'a': ['hello']})

a_dict["a"].append("kite")

print(a_dict)
>>> defaultdict(<class 'list'>, {'a': ['hello', 'kite']})

Source: kite.com

How to add element to list value in a dict python

dates_dict.setdefault(key, []).append(date)

Similar codes

9 votes131 views6 answers
Lists in python
Python
5 votes158 views1 answer
Double in python
Python
-1 vote174 views1 answer
Email validation using django
Python Django
0 vote174 views1 answer
Python dlib
Python
0 vote155 views1 answer
A.all() numpy
Python
1 vote141 views1 answer
Pandas .nlargest
Python
0 vote176 views2 answers
Requests get cookies from response
Python
110 votes142 views6 answers
Read text file in python
Python
0 vote180 views1 answer
Star rating form in flask
Python Flask
0 vote141 views1 answer
Install easygui conda
Python