Okay, I guess we have to turn to plan B.
What's plan B?
Why wasn't that plan A?
- The Big Band Theory : "The Lizard-Spock Expansion"
doveryai no proveryai (trust, but verify)
- Russian proverb adopted as signature phrase by Ronald Reagan
Two functions f and g are provided as inputs to checkio. The first function f is the primary function and the second function g is the backup. Use your coding skills to return a third function h which returns the same output as f unless f raises an exception or returns None. In this case h should return the same output as g. If both f and g raise exceptions or return None, then h should return None.
As a second output, h should return a status string indicating whether the function values are the same and if either function erred. A function errs if it raises an exception or returns a null value (None).
The status string should be set to: "same" if f and g return the same output and neither errs, "different" if f and g return different outputs and neither errs, "f_error" if f errs but not g, "g_error" if g errs but not f, or "both_error" if both err.
Input: Two functions: f (primary) and g (backup).
Output: A function h which takes arbitrary inputs and returns a two-tuple.
f = lambda...
This is an exercise in working with functions as first class objects.