problems installing pylab

[Robert William Lunnon]

Dear Python

I am trying to install pylab alongside python 3.6. However when I type

python -m pip install pylab

I get the message

No module named site

In the documentation [documentation for installing python modules in
python 3.6.0 documentation] it says: The above example assumes that the
option to adjust the system PATH environment variable was selected when
installing python.

How do I do this?

I am running Windows 10

Looking forward to hearing from you

Bob