Available from version >= r9003
It will change later on, just a quick hack for the moment
1- From avidemux : Call it with --var key=value
2- From a tinypy script
myos=os()
value=myos.environ("key")
In a case you did not set key, you 'll get an empty string as return value
I'm going to get r9003.
At the pace of new release probably I should keep the git so the update won't need to download the entire github.
With next update (i.e. post 9003) it will be like regular python
i.e.
import os
val=os.environ("foo")