Bugfix for ROC plot image saving to file

[TatianaBurek]

Describe the Problem

ROC plot can't be created. The error message is pointing to some issues in Kaleido package that happen during saving the plot to a PNG file:

Traceback (most recent call last):
  File "/Users/tatiana/PycharmProjects/METplotpy/metplotpy/plots/roc_diagram/roc_diagram.py", line 487, in main
    r.save_to_file()
  File "/Users/tatiana/PycharmProjects/METplotpy/metplotpy/plots/roc_diagram/roc_diagram.py", line 378, in save_to_file
    self.figure.write_image(image_name)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/plotly/basedatatypes.py", line 3829, in write_image
    return pio.write_image(self, *args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/plotly/io/_kaleido.py", line 267, in write_image
    img_data = to_image(
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/plotly/io/_kaleido.py", line 144, in to_image
    img_bytes = scope.transform(
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/kaleido/scopes/plotly.py", line 153, in transform
    response = self._perform_transform(
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/kaleido/scopes/base.py", line 293, in _perform_transform
    self._ensure_kaleido()
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/kaleido/scopes/base.py", line 188, in _ensure_kaleido
    self._std_error_thread.setDaemon(True)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/threading.py", line 1217, in setDaemon
    warnings.warn('setDaemon() is deprecated, set the daemon attribute instead',
DeprecationWarning: setDaemon() is deprecated, set the daemon attribute instead
python-BaseException
Exception ignored in: <_io.FileIO name=6 mode='rb' closefd=True>
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/kaleido/scopes/base.py", line 252, in _shutdown_kaleido
ResourceWarning: unclosed file <_io.BufferedReader name=6>
Exception ignored in: <_io.FileIO name=8 mode='rb' closefd=True>
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/kaleido/scopes/base.py", line 252, in _shutdown_kaleido
ResourceWarning: unclosed file <_io.BufferedReader name=8>

plot_20231024_192006.yaml.txt
plot_20231024_192006.data.txt

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[bikegeek]

This only occurs with PCT linetype data. This warning is not generated for CTC linetype.

[bikegeek]

This issue does not occur for the PCT linetype when using Python 3.8. Something changed when we migrated from Python 3.8 to Python 3.10: