[Python] pytables (HDF5) reader/writer

[vsisl]

In one of my projects, we use a python stack with pandas doing all the DataFrame stuff. We're currently depending on an SQL database but want to migrate to pytables. It would be amazing if polars offered an easy way how to load/store data from/to pytables HDF5 files!

Originally posted by @vsisl in #3520 (comment)

[stinodego]

Please refrain from opening duplicate issues.

[vsisl]

Hi @stinodego

I didn't intend to create a duplicate issue. My feeling was that #3520 was requesting a generic HDF5 reader/writer with optional higher-level APIs.

Meanwhile my intention was to open a feature request for a specific HDF5 reader/writer compatible with pytables.

Sorry for not making this more clear. My team and I would appreciate if your consider to re-open this issue. :)

Thanks for your effort making polars great!

[stinodego]

The other issue already covers this. And it's accepted, so feel free to work on it!