<filename>transactions/constants.py
OUT_TRANSACTION = 0
IN_TRANSACTION = 1
DOLAR = 'U$'
REAL = 'R$'
EURO = '€'
LIST_CURRENCY_TRANSACTIONS = {
    'DOLAR':DOLAR,
    'REAL':REAL,
    'EURO': EURO
}
<filename>transactions/constants.py
OUT_TRANSACTION = 0
IN_TRANSACTION = 1
DOLAR = 'U$'
REAL = 'R$'
EURO = '€'
LIST_CURRENCY_TRANSACTIONS = {
    'DOLAR':DOLAR,
    'REAL':REAL,
    'EURO': EURO
}