Saving sticky

[JoshD]

Is there a way to save a sticky dictionary between rhino sessions?
I have a script where I am creating quite a large dictionary of objects that is being made from a main script and saved within a sc.sticky to pass this information between a number of smaller scripts.
The issue is when I close Rhino this is lost, and I then need to rerun the large script each time I reopen Rhino even though I havent changed anything within the model.
My first thought was to save this as json in the document user text, but the dictionary also contains objects that aren’t easily converted into text.
Thanks

[TomTom (Tom)]

You could serialize the sticky instance in binary format without any need to parse. Check .Net framework documention (MSDN) or (Iron)Python help on how to do this.

[AndersDeleuran]

@TomTom

(Iron)Python help on how to do this

Indeed, I like to use the standard pickle module for this:

Serializing to file

Specifically to GHPython, I tend to structure RhinoCommon geometry data and more primitive types (floats, integers, strings, booleans) into a dictionary. And then pickle/unpickle (i.e. serialise) that to/from file using the standard pickle module: https://ironpython-test.readthedocs.io/en/latest/library/pickle.html Note that there’s also the cpickle standard module, and that not all data types will pickle. If you’re only interested in primitive types, I’d advice to use the standard json module…

[Dancergraham (Graham Knapp)]

@AndersDeleuran

Indeed, I like to use the standard pickle module for this:

And the shelve module provides an even simpler key : item access method on top of pickle, so very similar to the sticky dictionary.

[AndersDeleuran]

@Dancergraham

… the shelve module …

I somehow missed this! This looks very useful. Cheers Graham