Well, I finally ran into a Python Unicode problem, sort of

[Lawrence D’Oliveiro]

On Monday, July 4, 2016 at 11:47:26 AM UTC+12, eryk sun wrote:
> Python lacks a mechanism to add user-defined operators. (R has this
> capability.) Maybe this feature could be added.

That would be neat. But remember, you would have to define the operator precedence as well. So you could no longer use a recursive-descent parser.