how to add values to dictionary code example

Example 1: python dictionary add key-value pair

dict = {'key1':'value_one', 'key2':'value_two'}  
dict['key3'] = 'value_three'

Example 2: add value to dictionary python

dict[key] = value

Example 3: add values to dictionary key python

key = "somekey"
a.setdefault(key, [])
a[key].append(2)