# A Dictionary is a collection which is unordered, changeable and indexed. No duplicate members.

# Create dict

person = {

'first_name': 'John',

'last_name': 'Doe',

'age': 30

}

# Use constructor

# person2 = dict(first_name='Sara', last_name='Williams')

# Get value

print(person['first_name'])

print(person.get('last_name'))

# Add key/value

person['phone'] = '555-555-5555'

# Get dict keys

print(person.keys())

# Get dict items

print(person.items())

# Copy dict

person2 = person.copy()

person2['city'] = 'Boston'

# Remove item

del(person['age'])

person.pop('phone')

# Clear

person.clear()

# Get length

print(len(person2))

# List of dict

people = [

{'name': 'Martha', 'age': 30},

{'name': 'Kevin', 'age': 25}

]

print(people[1]['name'])