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Pythonic sum of 2014 World Cup spendings
# coding: utf-8
from urllib.request import urlopen
from xml.etree import ElementTree
class Budget(object):
'''2014 World Cup budget parser.'''
def __init__(self, data_url):
'''Parses XML from data_url.'''
with urlopen(data_url) as response:
self.tree = ElementTree.parse(response)
def __iter__(self):
'''Iterate over spending lines from the budget.'''
xpath = './/copa:empreendimento'
namespaces = {'copa': ''}
for element in self.tree.iterfind(xpath, namespaces=namespaces):
yield Spending(element)
class Spending(object):
'''2014 World Cup spending line.'''
def __init__(self, element):
self.element = element
def value(self):
'''Get the spending value, if any.'''
value = self.element.find('./valorTotalPrevisto')
return None if value is None else float(value.text)
def started(self):
'''Check whether spending has started.'''
return self.element.find('./andamento/id').text != '1'
if __name__ == '__main__':
# setup locale for pretty printing the spending.
import locale
locale.setlocale(locale.LC_ALL, 'pt_BR.UTF-8')
budget = Budget('')
total_spending = sum(spending.value for spending in budget
if (spending.value is not None) and spending.started)
print(locale.currency(total_spending, grouping=True))
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zrhans commented Jul 9, 2015

Muito bom

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