What is the Python equivalent of the C# ?? operator [duplicate]

This question already has an answer here:

• Is there a Python equivalent of the C# null-coalescing operator? 5 answers

In C# the ?? operator can be used as such

foo = Null;
var = foo ?? "Since Foo was null, var has been assigned this string as a value";
print(var);
>"Since Foo was null, var has been assigned this string as a value"

Is there an equivalent operator or method in Python?

P.S. I know I can use an if statement, but I am specifically curious if a quick method such as ?? exists.