class LaboratoryException(Exception):
    pass


class MismatchException(LaboratoryException):
    pass

class LaboratoryException(Exception):
    def __init__(self, message, *a, **kw):
        self.message = message
        super(LaboratoryException, self).__init__(*a, **kw)


class MismatchException(LaboratoryException):
    pass

Add message attr to LaboratoryException
Add message attr to LaboratoryException

  class LaboratoryException(Exception):
-     pass
+     def __init__(self, message, *a, **kw):
+         self.message = message
+         super(LaboratoryException, self).__init__(*a, **kw)
  
  
  class MismatchException(LaboratoryException):
      pass
  
Add message attr to LaboratoryException
## Code Before:
class LaboratoryException(Exception):
    pass


class MismatchException(LaboratoryException):
    pass

## Instruction:
Add message attr to LaboratoryException
## Code After:
class LaboratoryException(Exception):
    def __init__(self, message, *a, **kw):
        self.message = message
        super(LaboratoryException, self).__init__(*a, **kw)


class MismatchException(LaboratoryException):
    pass
