/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

0 vote256 views1 answer
Python index of lowest value in list
Python
0 vote245 views1 answer
Django not saving images forms
Python
-1 vote237 views1 answer
Godot variablen einen wert hinzufügen
Python
0 vote241 views1 answer
Create table pyspark sql
Python
0 vote267 views1 answer
Sql like equivalent in python
Python
3 votes266 views2 answers
Enum
Python
0 vote259 views1 answer
Filter dataframe with a list of index
Python
0 vote269 views1 answer
Python tar a directory
Python
14 votes261 views3 answers
Shutdown/restart windows with python
Python
4 votes252 views3 answers
Update python ubuntu
Python