Docker build failed installing python-casacore

[drtobybrown]

I'm trying to use the following example as a base for a Docker image:

Dockerfile:

FROM kernsuite/base:7
RUN docker-apt-install python-casacore

However, docker build -t drtobybrown/kernsuite:v0.1 . throws the following build error:

6 4.766 Package python-casacore is not available, but is referred to by another package.
#6 4.766 This may mean that the package is missing, has been obsoleted, or
#6 4.766 is only available from another source
#6 4.766 
#6 4.842 E: Package 'python-casacore' has no installation candidate
------
executor failed running [/bin/sh -c docker-apt-install python-casacore]: exit code: 100

[drtobybrown]

typo in the docs

docker-apt-install python-casacore -> docker-apt-install python3-casacore