Personal Experience

Question 1

Prevent KeyError

Answer 1

my_dict.get(‘key’)

Question 2

Prevent AttributeError

Answer 2

getattr(self.desired_group, 'date_from', None)

Question 3

Prevent AttributeError for nested attributes

Safely check for attribute’s attribute

Answer 3

getattr(getattr(self.desired_group, 'education_program', None), 'age_from', None)