EXR meta data issues

[MJNorris]

Hi there,

I'm trying to set custom data as meta data using the mantra render attribute:

"vm_image_exr_attributes"

according to the docs i should be able to parse the attribute a python dictionary object, however whenever I try to do this:

 

test_dict = {"count" : 0,
            "path" : "/jobs/"}           
my_node.parm("vm_image_exr_attributes").set(test_dict)

 

I get the following error:

TypeError: in method 'Parm_set', argument 2 of type 'std::map<std::string,std::string,std::less<std::string >,std::allocator<std::pair<std::string const,std::string > > > const &'

 

What I am trying to achieve is a dictionary comprised of file paths that I can then check in nuke.

Can anyone shed any light on this?

 

thanks

[3dome]

i don't think you can parse it a python dict. What it does is it interprets the string you enter in that field as a python dict. If you feed it {"count":0, "path":"/jobs/"} it should work

if you want to work with parsing it a dict then you will have to convert the dict into a string I guess

[jkunz07]

You should be able to use python's json module to encode and decode that from dict to string or vice versa

https://docs.python.org/2/library/json.html

[MJNorris]

Thanks for the help,

 

makes a lot more sense, although I'm finding it a bit temperamental, sometimes working, sometimes not. I'll keep investigating.

 

Thanks again