I have some code which seems to print [<__main__.TCar object at 0x0245C1B0>]
but I want it to print the actual contents of the list.
class TCa
print the attribute one by one rather than printing garange once: print(self.attribute).Note that the attribute in the code is an instance of the object
You have to define either a __str__ method or a __repr__ method for that:
class TCar():
def __init__(self, Make, Model, EngineSize, Price):
self.Make = str(Make)
self.Model = str(Model)
self.EngineSize = float(EngineSize)
self.Price = float(Price)
def __repr__(self):
return "<Car {0} {1} {2} {3}>".format(self.Make, self.Model, self.EngineSize, self.Price)
def __str__(self):
return "{0} {1}".format(self.Make, self.Model)
In a nutshell,
__repr__
is used if there's a need to display "raw" content of the object, it's the kind you see when you are displaying the list's contents, so if you have a list of cars, it would look like this:
[<Car Tesla Model S 500bhp $100000>, <Car Smart Fortwo 80bhp $5000>]
__str__
is used if you try to print the actual object, like print(TeslaCar)
with TeslaCar
being a TCar
instance. It would give you something like "Tesla Model S"
.
You have a list of objects here. Add something like:-
def __str__(self):
print self.Make, self.Model, self.EngineSize, self.Price
This would print the value of all attributes of object. Or you can modify the function as per your behavior requirement.
You can either override __str__
or __repr__
like this:
class TCar():
def __init__(self, Make, Model, EngineSize, Price):
self.Make = str(Make)
self.Model = str(Model)
self.EngineSize = float(EngineSize)
self.Price = float(Price)
def __repr__(self):
return "{Make}-{Model} (v{EngineSize}/{Price}$)".format(**self.__dict__)
Garage = [TCar("Audi", "TT", "8", "80000")]
print(Garage)
# [Audi-TT (v8.0/80000.0$)]
Also you might want to check out this question about __str__
vs. __repr__
.