# dict_functional.py

# b_dict_functional.py

result = {}
def fn(x):
    result.update ({
        'a': x *  5,
        'b': x +  7,
        'c': x -  2,
        5  : x == 5,
        0  : x *  20
        })

0
fn(5)
print result.get('b') # 12
print result.get(0)   # 100
print result.get(5)   # True
print result.get('x') # None
x=100
print result.get(x)   # None
result['z'] = 'Zzz...'
print result # {'a': 25, 0: 100, 'c': 3, 'b': 12, 5: True, 'z': 'Zzz...'}
fn(100)
print result # {'a': 500, 0: 2000, 'c': 98, 'b': 107, 5: False, 'z': 'Zzz...'}
print result.get('z')   # 'Zzz...'
print result['c'] # 98
print result['x'] # KeyError: 'x'