How do we get an optional class attribute in Python?

Question

For dictionary we can use .get method. What about a class's attribute and provide a default value?

Answer 1

You can use hasattr and getattr.

For example:

hasattr(foo, 'bar')

would return True if foo has an attribute named bar, otherwise False and

getattr(foo, 'bar', 'quux')

would return foo.bar if it exists, otherwise defaults to quux.