URGENT: the dreaded "ModuleNotFound: Azure" error is being thrown when executing the from-import lines of code !!!

- [x] bug report -> please search issues before submitting
- [ ] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)
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### Minimal steps to reproduce
>
START VSCode;
INSTALL Python extensions (which will INCLUDE everything to run Jupyter Notebooks in a project) in VSCode;
DEFINE a python virtual environment for your project;
INSTALL Azure CognitiveServices "custom vision" package into that virtual environment;
(pip install azure-cognitiveservices-vision-customvision)
COPY the following line into a notebook cell:
from azure.cognitiveservices.vision.customvision.training import CustomVisionTrainingClient
EXECUTE the cell

=> RESULT: VSCode will throw the following exception:
ModuleNotFoundError: No module named 'azure'

### Any log messages given by the failure
>ModuleNotFoundError: No module named 'azure'

### Expected/desired behavior
> the desired class is SUCCESSFULLY imported into the notebook

### OS and Version?
> Win10pro (all auto-patching CURRENT)

### Mention any other details that might be useful
> COPIED & PASTED code VERBATUM directly from the following "QuickStart" web page at docs.microsoft.com:
https://docs.microsoft.com/en-us/azure/cognitive-services/custom-vision-service/quickstarts/image-classification?tabs=visual-studio&pivots=programming-language-python

> ---------------------------------------------------------------
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