Working through the Sage tutorial in a notebook error.

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Unfortunately that does not work with Jupyter.

Making it work with Jupyter is tracked at

• Sage Trac ticket 24593: Provide live documentation support in Jupyter

So far, live documentation only works with SageNB, which was the "Sage notebook" before the Jupyter notebook.

Unfortunately, the SageNB notebook does not work with Python 3, so it is only available with versions of SageMath compiled for Python 2.

Sage transitioned from Python 2 to Python 3 in the SageMath 8.x and 9.x versions:

• SageMath 8.x versions were primarily Python 2 based, with growing Python 3 capability.
• SageMath 9.x versions were primarily Python 3 based, with still an option to compile for Python 2 in SageMath 9.0 and 9.1.

Unless otherwise stated, SageMath binaries and installers are

• based on Python 2 up to SageMath 8.9,
• based on Python 3 starting from SageMath 9.0.

Building SageMath from source, there is a little more leeway:

• the late SageMath 8.x could also be compiled for Python 3 using

  ./configure --with-python=3
  

• the early SageMath 9.x could also be compiled for Python 2 using

  ./configure --with-python=2
  

On Windows, to get live documentation, use SageMath 8.9 (it can coexist with SageMath 9.2).

Download the installer from one of these locations (the installer you get from either location is the same):

• Sage-Windows installer from GitHub
• Sage-Windows installer from the Sage download mirrors

Let's hope "live Sage documentation for Jupyter" will be available in a not too distant future.