deep copy dictionary

---

examples/modules/copy_dictionary.py

a = {
    'name': 'Foo Bar',
    'grades': {
       'math': 70,
       'art' : 100,
    },
    'friends': ['Mary', 'John', 'Jane', 'George'],
}

b = a
a['grades']['math'] = 90
a['email'] = 'foo@bar.com'
print(a)
print(b)

{'name': 'Foo Bar', 'grades': {'math': 90, 'art': 100}, 'friends': ['Mary', 'John', 'Jane', 'George'], 'email': 'foo@bar.com'}
{'name': 'Foo Bar', 'grades': {'math': 90, 'art': 100}, 'friends': ['Mary', 'John', 'Jane', 'George'], 'email': 'foo@bar.com'}

• deepcopy

examples/modules/deep_copy_dictionary.py

from copy import deepcopy

a = {
    'name': 'Foo Bar',
    'grades': {
       'math': 70,
       'art' : 100,
    },
    'friends': ['Mary', 'John', 'Jane', 'George'],
}

b = deepcopy(a)
a['grades']['math'] = 90
a['email'] = 'foo@bar.com'
print(a)
print(b)

{'name': 'Foo Bar', 'grades': {'math': 90, 'art': 100}, 'friends': ['Mary', 'John', 'Jane', 'George'], 'email': 'foo@bar.com'}
{'name': 'Foo Bar', 'grades': {'math': 70, 'art': 100}, 'friends': ['Mary', 'John', 'Jane', 'George']}