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Commit 67e59b2

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adicionando novo exemplo
1 parent db43898 commit 67e59b2

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10 files changed

+145
-0
lines changed

10 files changed

+145
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lines changed
Lines changed: 16 additions & 0 deletions
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import shelve
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db = shelve.open('class-shelve')
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for key in db:
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print(key, '->\n ', db[key].name, db[key].pay)
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bob = db['bob']
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sue = db['sue']
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tom = db['tom']
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print(bob.last_name())
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print(sue.last_name())
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print(tom.last_name())
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import shelve
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from person import Person
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from manager import Manager
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p1 = Person('bob smith', 42, 30000, 'software')
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p2 = Person('sue jones', 25, 40000, 'hardware')
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p3 = Person('tom tolis', 50, 50000)
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db = shelve.open('class-shelve')
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db['bob'] = p1
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db['sue'] = p2
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db['tom'] = p3
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db.close()
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from person import Person
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class Manager(Person):
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def giveRaise(self, percent, bonus=0.1):
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self.pay *= (float('1.' + str(percent)) + bonus)
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if __name__ == '__main__':
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tom = Manager(name='tom tolis', age=50, pay=5000)
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print(tom.last_name())
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print(tom.pay)
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tom.giveRaise(20)
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print(tom.pay)
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import shelve
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fieldNames = ('name', 'age', 'job', 'pay')
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maxField = max(len(f) for f in fieldNames)
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db = shelve.open('class-shelve')
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while True:
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key = input('\nKey: ')
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if not key:
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break
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try:
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record = db[key]
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except:
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print(f'no such key: {key}')
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print(f' sem key: {key}')
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else:
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print('-'*30)
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for field in fieldNames:
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print(f'{field.ljust(maxField).title()} -> {getattr(record, field)}')
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import shelve
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from person import Person
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fieldNames = ('name', 'age', 'job', 'pay')
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db = shelve.open('class-shelve')
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while True:
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key = input('\nkey: ')
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if not key:
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break
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if key in db:
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record = db[key] # update record exixtente
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else:
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record = Person(nome='?', age='?')
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for field in fieldNames:
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currval = getattr(record, field)
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nextText = input(f'[{field}]={currval}\n\tnew: ')
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if nextText:
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setattr(record, field, eval(nextText))
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db[key] = record
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db.close()
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class Person:
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def __init__(self, name, age, pay=0, job=None):
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self.name = name
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self.age = age
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self.pay = pay
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self.job = job
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# return ultimo nome
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def last_name(self):
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return self.name.split()[-1]
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# dar aumento salarial
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def giveRaise(self, percent):
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self.pay *= float('1.' + str(percent))
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if __name__ == '__main__':
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bob = Person('bob smith', 42, 3000, 'software')
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sue = Person('sue jones', 45, 4000, 'hardware')
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jonas = Person('jonas tes', 27, 1000, 'software')
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print(sue.name)
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print(sue.pay)
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sue.giveRaise(10)
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print(sue.pay)
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print(bob.name)
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print(bob.job)
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print(jonas.last_name())
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print(jonas.job)
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import shelve
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db = shelve.open('class-shelve')
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sue = db['sue'] # puxando
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sue.giveRaise(25) # dando aumento
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db['sue'] = sue # mandando de volta
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tom = db['tom']
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tom.giveRaise(20)
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db['tom'] = tom
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db.close()
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