Documentation for polars.Expr.is_in / polars.Expr.ise seems broken.

[z3rone]

Description

I am currently using python polars 1.23.0 and it seems to me that the documented expression polars.Expr.ise() should be in fact polars.Expr.is_in. Going to the docs for 0.20 there is even a redirection issue with the expression, switching betwen ise and is_in constantly (see https://docs.pola.rs/api/python/version/0.20/reference/expressions/api/polars.Expr.is_in.html in Firefox 135.0)

Link

No response

[deanm0000]

Looks like this is for the whole site when trying to select a version before stable, not just is_in. I put this as medium since it's outward facing but didn't go higher since it's for deprecated versions.

[mcrumiller]

Can confirm, trying to select anything <= 0.20 creates the issue.

[z3rone]

The main issue is that polars.Expr.ise() does not seem to exist (in any version) and actually should be polars.Expr.is_in(). However ,polars.Expr.is_in() is not documented anywhere in the latest version, even though I can confirm it very much exists in 1.23.0.

[deanm0000]

It's not just that method. I can't say it's for absolutely all the methods but for the handful of the ones I tried, it did the same behavior. tbh, I'm not sure what polars.Expr.ise() is or came from. Neither of the links in your post have "ise" in them. They both are "is_in".

[mcrumiller]

polars.Expr.is_in() is not documented anywhere in the latest version

It's right here: https://docs.pola.rs/api/python/stable/reference/expressions/api/polars.Expr.is_in.html

You can also navigate to it via Expressions -> Boolean:

[mcrumiller]

I'm confused too, I've never heard of ise. What is that, and can you provide a link to it?

[z3rone]

when you click on the link you provided the actual page shows ise instead of is_in

[mcrumiller]

Where? I think something may be wrong with your browser.

[z3rone]

you might be right. It only occurs in FF. Chrome and Safari are fine...

[z3rone]

disabling ublock did not help neither did updating to FF 135.0.1 (aarch64)

[mcrumiller]

I just installed Firefox and I cannot reproduce.

There is nothing in the codebase that has ise as a function, expression, or any time of variable. When I search py-polars/docs/source/** for the regular expression ise\s*$ it only matches the word Bitwise. I honestly have no idea what's going. Is it possible that you have some weird extension in your browser that replaces _in with e? Or maybe it's replacing s_in with se?

Can you right click and do whatever Firefox version's of View Source is, and see if the Expr.ise is actually in the html? This is incredibly weird.

[z3rone]

oh god I found the issue. It was an experimental plugin. Sorry for the trouble.

[deanm0000]

The reloading loop still remains so I'm reopening