'_MainThread' object has no attribute 'isAlive'

[AnandTiwari1997]

isAlive() is not supported starting from Python 3.9. This threw a deprecated warning in Python 3.8 but has been removed entirely in Python 3.9. Starting from Python 3.9, It is renamed to is_alive().

Code File Reference:

wavefront-pyformance/wavefront_pyformance/runtime_metrics.py

Line 65 in 961a444

if thread.isAlive():

The environment in which exception occurred:
Python: 3.9.6
wavefront-pyformance: 1.2.4
wavefront-flask-sdk-python: 1.0
wavefront-opentracing-sdk-python: 2.1.0