/Python/Python dictionary append value if key exists

Python dictionary append value if key exists

Append to list in dictionary python if exists

dic.setdefault(key,[]).append(value)

1

Source: stackoverflow.com

Python dictionary append value if key exists

from collections import defaultdict
d = defaultdict(list)
d['key'].append('mykey')

-1

Source: stackoverflow.com

Similar codes

6 votes223 views3 answers
Cosine similarity python
Python
0 vote184 views1 answer
Separating a relational plot based on a sixth variable | seaborn relational plot
Python
0 vote188 views2 answers
Reload class module python
Python
9 votes200 views2 answers
Pygame.draw.rect()
Python
14 votes189 views6 answers
How to print hello world in python
Python
0 vote220 views1 answer
Django model manager user
Python Django
1 vote192 views1 answer
Python trick big numbers visualisation
Python
0 vote214 views1 answer
Pandas fill missing index values
Python
0 vote200 views1 answer
How to use assert in python
Python
20 votes179 views4 answers
Current year in python
Python

Share