Right now I have a class called A.
I have some code like this..
from my.package.location.A import A
...
foo = A.doSomething(bar)
This is great.
But now I have a new version of A called A, but in a different package, but I only want to use this other A in a certain scenario. So I can do something like this:
if(OldVersion):
from my.package.location.A import A
else:
from new.package.location.A import A
...
foo = A.doSomething(bar)
This works fine. But it is ugly. How can I do this better? I really want to do something like this
from my.abstraction.layer.AFactory import AFactory
...
myA = AFactory.giveMeA() # this looks at "OldVersion" and gives me the correct A
foo = myA.doSomething(bar)
is there a way I can do that easier? Without the factory layer? This now can turn every static method call on my class into 2 lines. I can always hold a reference in a class to reduce the impact, but im really hoping python has a simpler solution.
Put your lines into a_finder.py:
if OldVersion:
from my.package.location.A import A
else:
from new.package.location.A import A
Then in your product code:
from a_finder import A
and you will get the proper A.