how to add an item to dictionary in python code example

Example 1: add item to python dictionary

data = dict()
data['key'] = value

Example 2: how to append to a dictionary in python

d = {'a': 1, 'b': 2}
print(d)
d['a'] = 100  # existing key, so overwrite
d['c'] = 3  # new key, so add
d['d'] = 4
print(d)