def create_price(self, book=None, instance=None):
    if instance:
        price_instance = instance
    else:
        price_instance = gnucash.gnucash_core_c.gnc_price_create(
            book.get_instance())
    ClassFromFunctions.__init__(self, instance=price_instance)
def create_price(self, book):
    price_instance = gnucash.gnucash_core_c.gnc_price_create(book.get_instance())
    ClassFromFunctions.__init__(self, instance=price_instance)
def create_price(self, book=None, instance=None):
    if instance:
        price_instance = instance
    else:
        price_instance = gnucash.gnucash_core_c.gnc_price_create(book.get_instance())
    ClassFromFunctions.__init__(self, instance=price_instance)