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Python Object-Oriented Python (retired) Objects Create a Class with a Method

Tim Burgess
Tim Burgess
2,552 Points
Posted by Tim Burgess
Tim Burgess
2,552 Points

Object-oriented Python example

What is wrong with this code? It fails to pass the test however when I run it in the Python 2.7 interpreter, it works fine.

class Store(object):
    open = 9
    close = 16

    def hours(self):
        return "We're open from {0} to {0}".format(self.open,self.close)

3 Answers

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Tim,

You have a couple of problems with your return string which is causing the issues.

  1. You have set {0} when instead you just want {} as you only need to define alphanumeric values when unpacking data
  2. You have left off the full stop at the end of the string.
return "We're open from {} to {}.".format(self.open, self.close)

Hope that helps.

Ryan Carson
Ryan Carson
23,287 Points
Ryan Carson
Ryan Carson
23,287 Points

You don't need to add object to your Store declaration, as it's implied. So you can just do this:

class Store():
    open = 9
    close = 16

    def hours(self):
        return "We're open from {} to {}".format(self.open,self.close)

store = Store()
print(store.hours())
Tim Burgess
Tim Burgess
2,552 Points
Tim Burgess
Tim Burgess
2,552 Points

Thanks guys.

@Ryan, is object implied for only Python 3? I'm working almost completely in Python 2.7.

And if it is implied, should I not be able to do simply <code>class Store:</code>?

Ryan Carson
Ryan Carson
23,287 Points

Durrr, you're right, sorry. It'd just be:

class Store:

Sorry!