python add value to map code example

Example 1: add value to dictionary python

dict[key] = value

Example 2: append dictionary python

>>> d1 = {1: 1, 2: 2}
>>> d2 = {2: 'ha!', 3: 3}
>>> d1.update(d2)
>>> d1
{1: 1, 2: 'ha!', 3: 3}

Example 3: add values to dictionary key python

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