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Commit bd8e15e

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adicionando novos exemplos
1 parent 5edf5c3 commit bd8e15e

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17 files changed

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17 files changed

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import shelve
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db = shelve.open('people-shelve')
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for key in db:
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# print(key, '->\n\t', db[key])
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print(f' {key}->')
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for k, v in db[key].items():
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print(f'\t{k.title():>4}: {v}')
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print('-'*30)
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print(db['sue']['name'])
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db.close()
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bob = {'name': 'bob smith', 'age': 42, 'pay': 30000, 'job': 'dev'}
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sue = {'name': 'sue jones', 'age': 45, 'pay': 40000, 'job': 'hdw'}
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tom = {'name': 'tom', 'age': 50, 'pay': 0, 'job': None}
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# datebase
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db = {}
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db['bob'] = bob
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db['sue'] = sue
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db['tom'] = tom
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if __name__ == '__main__':
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for key in db:
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print(' ', key, '=>\n\t', db[key])
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from initdata import bob, sue
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import shelve
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db = shelve.open('people-shelve')
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db['bob'] = bob
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db['sue'] = sue
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db.close()
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from initdata import tom
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import shelve
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db = shelve.open('people-shelve')
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sue = db['sue']
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sue['pay'] *= 1.10
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# update para no db de cada pessoa
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db['sue'] = sue
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db['tom'] = tom
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db.close()
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print('update completed/ update terminado')
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# coding: utf-8
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import shelve
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db = shelve.open('people-shelve')
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bob = db['bob']
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bob['name'].split()[-1]
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bob['name'].split()[-1].title()
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sue = db['sue']
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sue
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sue['pay'] *= 1.25
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sue['pay']
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db['sue'] = sue
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db.close()
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# coding: utf-8
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from person_start import Person
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bob = Person('bob', 42)
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sue = Person('sue jones', 45)
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bob = Person('bob smith', 42)
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jonas = Person('jonas t', 26)
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people = [bob, sue, jonas]
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sue = Person('sue jones', 45, 400000')
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sue = Person('sue jones', 45, 400000)
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get_ipython().run_line_magic('ls', '')
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for person in people:
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print(person.name.title(), ' ', person.pay)
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people = [bob, sue, jonas]
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for person in people:
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print(person.name.title(), ' ', person.pay)
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x = [(person.name, person.pay) for person in people]
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x
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[rec.name for rec in people if rec.age >= 45] # sql-ish query
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[(rec.age**2 if rec.age >= 45 else rec.age) for rec in people]

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