Karl Habanero

You can execute HScript commands from Python using the hou.hscript("commandecho on") function

It seems these settings are saved automatically, even when you quit Houdini. I just tried it.

For this to work, wrap the filename attribute in backticks (e.g., `@filename`). If you also need to change the file extension, use `strreplace(@filename, '.fbx', '.newext')`.

https://www.sidefx.com/docs/houdini/tops/attributes.html#string-parameters [www.sidefx.com]