/Python/Python append value to dictionary list

Python append value to dictionary list

Dictionary append value python

d = {1:2}
d.update({2: 4})
print(d) # {1: 2, 2: 4}

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

Similar codes

1 vote152 views1 answer
Delete a record by id in flask sqlalchemy
Python Flask
0 vote106 views1 answer
Comment arrêter un jeu en appuyant sur une touche python
Python
0 vote123 views1 answer
Mongodb get first 10 records
Python
0 vote166 views1 answer
Shebang line python
Python
1 vote74 views3 answers
Mail mailer
Python
2 votes110 views3 answers
How to get a number from a string in python
Python
0 vote107 views1 answer
Pixmap in python
Python
1 vote107 views1 answer
How do i print when my bot is ready in discord.py
Python
65 votes119 views4 answers
Python csv dict reader
Python
7 votes113 views3 answers
Divmod
Python