Number of private variables in class

Question

Is there any way to know how many private variables are defined in the class?

Answer 1

In Python, there is no existence of “Private” instance variables which cannot be accessed except inside an object. 

But, a convention is being followed by most Python code and coders i.e., a name prefixed with an underscore, For e.g. _name should be treated as a non-public part of the API or any Python code, whether it is a function, a method or a data member.