ModuleNotFoundError: No module named 'azure' ___ (but the required module "azure-cognitiveservices-speech" is already in requirements.txt)

Thanks for the reply, Caroline.
When recreating a new virtual environment from scratch, the error disappeared. I had alternated between Streamlit and Flask… maybe something hadn’t run correctly during the make install.
No further support needed on this topic.
Best Regards,
Andrea