sage-package not found

[zerline]

$ sage -python2 -m pip install --upgrade --no-index -v .
...
Running command python setup.py egg_info
...
DistributionNotFound: No matching distribution found for sage-package (from sage-sample==0.3.0)

[thecaligarmo]

You need to also install the sage-package package. It can be found here:

https://github.com/sagemath/sage-package