I thought it also accepted fully qualified type names but I just tried it and you're right. Relevant to this submission's title, if your packages are side-effec

I thought it also accepted fully qualified type names but I just tried it and you're right. Relevant to this submission's title, if your packages are side-effect free, just importing the namespace then allows referencing the type names without touching the "actual" type import gamma def doit(bar: "gamma.Gamma"): ... In Java my answer to circular deps is the introduction of an interface that the concrete types can implement but then breaks the cycle