'Create simple data set with headers.'

def setUp(self):

    global data, book
    data = tablib.Dataset()
    book = tablib.Databook()
    self.headers = ('first_name', 'last_name', 'gpa')
    self.john = ('John', 'Adams', 90)
    self.george = ('George', 'Washington', 67)
    self.tom = ('Thomas', 'Jefferson', 50)
    self.founders = tablib.Dataset(headers=self.headers, title='Founders')
    self.founders.append(self.john)
    self.founders.append(self.george)
    self.founders.append(self.tom)
