Defaultdict key exists

'in' is the intended way to test for the existence of a key in a dict.

d = {"key1": 10, "key2": 23}

if "key1" in d:
    print("this will execute")

if "nonexistent key" in d:
    print("this will not")

Source: stackoverflow.com

Similar codes

1 vote284 views1 answer
Python how to inspect pyd for functions
Python
1 vote277 views4 answers
Table
Python
3 votes225 views1 answer
Cannot import name 'flask' from partially initialized module 'flask' (most likely due to a circular import)
Python
0 vote295 views1 answer
IntegrityError import in django
Python Django
0 vote266 views1 answer
Set permissions role discord.py
Python
1 vote284 views1 answer
Check if value is in series pandas
Python
0 vote320 views1 answer
Access django server from another machine
Python Django
0 vote294 views1 answer
Crear matriz python for
Python
10 votes258 views3 answers
Text to image python
Python
2 votes301 views1 answer
Clone website in python
Python