ModuleNotFoundError: No module named 'azure.cognitiveservices.vision.customvision'

It is recommended that you always create and activate a python virtual environment to work with Jupyter notebooks, like an Anaconda environment, or any other environment in which you've installed the Jupyter package.

To select an environment, use the Python: Select Interpreter command from the Command Palette (Ctrl+Shift+P). Once the appropriate environment is activated, you can create and open a Jupyter Notebook and connect to a remote Jupyter server for running code cells. Check Working with Jupyter Notebooks in Visual Studio Code for more info.

This is true for application development in Python in general as well.

A virtual environment is a folder within a project that isolates a copy of a specific Python interpreter. Once you activate that environment (which Visual Studio Code does automatically), running pip install installs a library into that environment only.

When you then run your Python code, it runs in the environment's exact context with specific versions of every library. You can create a requirements.txt file for the libraries you need, then use pip install -r requirements.txt.

Here is a snippet from a sample requirements.txt file:

azure-mgmt-core==1.2.0
azure-mgmt-network==16.0.0
azure-mgmt-resource==10.2.0

If you don't use a virtual environment, then Python runs in its global environment that is shared by any number of projects.

Refer to the Azure SDK for Python Developer docs for more information on configuring your local Python dev environment for Azure.

Whenever U get: ModuleNotFoundError, the simple solution is to install the module using

pip install (module name)

For example, in your case try to run the following line:

!pip install azure

The ! is to run a command in a notebook.