dict.py

a = {}

# add a key-value pair
a['name'] = 'ishan'

# lets see whats in there
print(a)
# {'name': 'ishan'}

# add more key-value pairs
a['age'] = 23
a['gender'] = 'male'
print(a)
# {'gender': 'male', 'age': 23, 'name': 'ishan'}

# note above that the keys are not in the same order as we entered them,
# this is because python's dictionaries are unordered
# see https://stackoverflow.com/a/15479974/2972348

# get a specific value
print(a['name'])
# 'ishan'

# let's update a value
a['age'] = 24
print(a)
# {'gender': 'male', 'age': 24, 'name': 'ishan'}

# let's delete some values
del a['age']
print(a)
# {'gender': 'male', 'name': 'ishan'}