DoWhy is a Python library for causal inference that supports explicit modeling and testing of causal assumptions. DoWhy is based on a unified language for causal inference, combining causal graphical models and potential outcomes frameworks.
Changing the value from "dot" to None. The current default value requires the dot extension to be installed. However, if it is not installed, an error is raised. By default, this should not happen since it is an optional dependency.
Changing the value from "dot" to None. The current default value requires the dot extension to be installed. However, if it is not installed, an error is raised. By default, this should not happen since it is an optional dependency.
Addresses: https://github.com/py-why/dowhy/issues/1041