httprunner/docs/FAQ.md

Unable to install PyUnitReport dependency library automatically

If there is something goes wrong in installation like below.

Downloading/unpacking PyUnitReport (from ApiTestEngine)
  Could not find any downloads that satisfy the requirement PyUnitReport (from ApiTestEngine)

You could install PyUnitReport manully at first.

$ pip install git+https://github.com/debugtalk/PyUnitReport.git#egg=PyUnitReport

And then everything will be OK when you reinstall ApiTestEngine.

$ pip install git+https://github.com/debugtalk/ApiTestEngine.git#egg=ApiTestEngine