How can I return a default value for an attribute?

Question

This question already has an answer here:

• A get() like method for checking for Python attributes 3 answers

I have an object myobject, which might return None. If it returns None, it won't return an attribute id:

a = myobject.id

So when myobject is None, the stament above results in a AttributeError:

AttributeError: 'NoneType' object has no attribute 'id'

If myobject is None, then I want a to be equal to None. How do I avoid this exception in one line statement, such as:

a = default(myobject.id, None)

Answer 1

a=myobect.id if myobject else None