Visualization as jupyter widget with dict input

[awvwgk]

Currently for using the Jupyter widget via chemiscope.show requires an ASE Atoms object, in case those are not available the only alternative seems chemiscope.show_input which does only take a filepath. This makes it somewhat inconvenient to create the Jupyter widget when ASE is not used, because the chemiscope input needs to be serialized and written to disk before.

Example: https://tblite--257.org.readthedocs.build/en/257/tutorial/python/geometry.html#visualization

It would be great to either:

• pass a file descriptor or input stream to chemiscope.show_input
• pass a dict in chemiscope input schema to chemiscope.show

[Luthaf]

ASE is not required, you can also use other "structure providers". We currently support ASE and STK, but we can always add more here!

pass a file descriptor or input stream to chemiscope.show_input

Yes, that makes sense!

pass a dict in chemiscope input schema to chemiscope.show

We could add a "dict" struct format for that, that would be nice.