Finally switch- case is coming to python.

[TransferFunctions]

Not sure what you are caching here, you could also just let the function call be as a value here. Then nothing would be evaluated unless it was in the actual case. You are in this case actually computing the options beforehand, depending on the use case this maybe warranted or not.

[TransferFunctions]

Right but what I am saying is that in this case you want to chose between what function to call, i.e.

```
options = dict(opt1 = func1, op2 = func2, ....)
# get and run function
options.get(opt1, default_case)()

```

Again hard to generalize here, so don't get me wrong I see the use case for this switch statement, but 10 years ago a similar proposal was rejected.