Proper way to use **kwargs in Python

 You can pass a default value to get() for keys that are not in the dictionary:

self.val2 = kwargs.get('val2',"default value")

However, if you plan on using a particular argument with a particular default value, why not use named arguments in the first place?

def __init__(self, val2="default value", **kwargs):

from : https://stackoverflow.com/questions/1098549/proper-way-to-use-kwargs-in-python