You can easily figure out which version of python is used in any given notebook. Here’s what I see in the C1 W4 A2 notebook:
!python -V
Python 3.7.6
Or you can get a slightly more detailed version by doing this:
import sys
print(f"python version {sys.version}")
python version 3.7.6 | packaged by conda-forge | (default, Mar 23 2020, 23:03:20)
[GCC 7.3.0]
In general, you can enumerate the versions of all packages used and then use Anaconda to duplicate that environment. We don’t have complete instructions for how to do that, but here’s a thread which has some of the details.