just so that it is clear for everyone, including newbies here, does the insta-load code snippet work like this:

the author has encoded the wat module's source code into base64. the snippet shown decodes that back into python code, and then executes it on the fly, thus having the same effect as importing the wat module in the normal python way?

Yes, that has the same effect as installing the package. So if you feel uncomfortable, you can either install the pip package (and of course review the installed code) or review the decoded string before executing it. It's not that obfuscated anyways, it's still quite readable.

got it, thanks.

I was just about to post that it freaked me out a little, but wasn't sure if I was going to be the only one.

not hard to see it

with open('wat_source.py', 'w') as f: f.write(zlib.decompress(base64.b64decode(code.encode())).decode())

The insta-load is fine. You're supposed to save the snippet, decode and uncompress it, look at it to see what it does and that it's completely self-contained uncontroversial Python code and copy-paste your version that you bookmarked. It's super short.