Is the Python standard library standard in the sense that if Python is installed, then the standard library is installed too?
The documentation reads
It's not a Python issue. You can teach that the batteries are included. They are.
It's the distributions that are incomplete.
We've been unhappy with the Red Hat Enterprise Linux having old versions of Python. However, there are recipes for upgrades.
It's a common security practice to turn off all developer packages, leaving Python incomplete. This is a common situation outside Python and outside the essential Linux distribution.
Batteries are included under normal circumstances. But, it's also very easy to strip some or all of the batteries. And many organizations will -- for a variety of reasons -- create incomplete libraries.
It's not Python. It's the environments that are incomplete.