13_02_dict_comp.py

# coding: utf-8

from decimal import Decimal

total = Decimal('0')
schema = ('NumDocumento', 'ValContrato')

def dec(element, index):
    try:
        return Decimal(element[index])
    except:
        return Decimal('0')

with open('data/data/ExecucaoFinanceira.csv', 'r') as data_file:
    splited_data = [line.split(';') for line in data_file]
    data = [(element[0], dec(element, 5)) for element in
        splited_data if len(element) > 2]
    result = [{key:value for key, value in zip(schema, element)}
        for element in data]

    for info_dict in result:
        print("{}".format(info_dict))