Ely Spears

I have seen this type of error occur when combining `pytest-xdist` with other libraries that deal with multithreaded or multi-processing code. One common pain point is the Annoy library from...

@mafeko thank you for the example. That is very cool, but unfortunately does not cover the use case. In my case, I would need your example `calling_args` to have some...

Note that for more modern versions of Tensorflow, you may be forced to [patch more attributes](https://www.tensorflow.org/api_docs/python/tf/keras/callbacks/Callback#methods_2). I needed to do this, when using Tensorflow 1.14 with `tf.keras` having version 2.2.4....