ImportError while loading conftest '/build/python-jaeger-client/src/jaeger-client-python-4.8.0/tests/conftest.py'.
tests/conftest.py:17: in <module>
    from jaeger_client import ConstSampler, Tracer
jaeger_client/__init__.py:18: in <module>
    from .tracer import Tracer  # noqa
jaeger_client/tracer.py:23: in <module>
    import opentracing
E   ModuleNotFoundError: No module named 'opentracing'
==> ERROR: A failure occurred in check().
    Aborting...