It may not be "pythonic", but there's an established tradition of operator methods and there's no requirement that python code conform to any particular tradition.
https://stackoverflow.com/questions/52389105/how-operator-de...
When it’s used that way, you’ve lost that the operation is semantically analogous to __le__. I think the assumption it has no side effects goes, too.
Edit: not saying I like it, though.
Unless you implement __ge__, `'Hello!' >= document` will also call __le__, which may or may not be what you want. And `'Hello!' >= document <= 10` is equivalent to `'Hello!' >= document and document <= 10`, which can lead to confusing surprises.
(Brython does implement all of those pitfalls faithfully)
So, this is just another implementation with its tradeoffs, just like when using Jython to have Python (without its ecosystem) and the JVM. Here you have Python with another semantic to learn.