Bug#920325: python3-mypy: Depends: python3-mypy-extenions but it is not installable

[Adrian Bunk]

Package: python3-mypy
Version: 0.660-2
Severity: serious

The following packages have unmet dependencies:
 python3-mypy : Depends: python3-mypy-extenions but it is not installable


It's python3-mypy-exten*s*ions.