hello there hope you are doing great kedroid Issue I m tryin

Question

hello there hope you are doing great kedroid Issue I m trying to persist a dict as a yaml file The related catalog entry is the following ```optimisation programme type yaml YAMLDataSet filepath data test 05 model input optimisation programme yaml layer model input``` However it fails with the following error ```DataSetError Failed while saving data to data set YAMLDataSet filepath= Users cyril verluise Documents GitHub ClimaTeX dist apps alhambra rendered alhambra data test 05 model input optimisation programme yaml protocol=file save args= default flow style False str object has no attribute name ``` Expected behaviour From the <https kedro readthedocs io en stable kedro extras datasets yaml YAMLDataSet html|doc> I understood that the save function was just a wrapper around yaml dump which should work with my `optimisation programme` dict kedro version `0 18 3` Any idea

Cyril Verluise · Answer

``` Users cyril verluise opt anaconda3 envs climatex lib python3 8 site packages yaml representer p y 331 in represent object 328 listitems = list listitems 329 if dictitems is not None 330 dictitems = dict dictitems 331 if function name == newobj 332 function = args 0 333 args = args 1 334 tag = tag <http yaml org|yaml org> 2002 python object new AttributeError str object has no attribute name The above exception was the direct cause of the following exception ```

Cyril Verluise · Answer

direct cause of the error above point up

datajoely · Answer

that s a new one for me

datajoely · Answer

it s also odd that s in in the `yaml` library

datajoely · Answer

are you saving any complex objects Any fancy numpy stuff that may look like something primitive when it s not

Cyril Verluise · Answer

nope nothing fancy

datajoely · Answer

weird

Cyril Verluise · Answer

let me check that yaml dump works properly on the same input

datajoely · Answer

it s the world s simplest implementation behind the scenes

datajoely · Answer

just wrapped around the fsspec abstraction

Cyril Verluise · Answer

indeed you are right my dict has some fancy stuff in it and yaml is the source of the error My bad completely forgot about that

datajoely · Answer

no worries that s a nasty stacktrace

datajoely · Answer

been there

Cyril Verluise · Answer

thanks a lot

Cyril Verluise · Answer

Quick follow up there is a simple workaround which consists in building a custom kedro dataset using `omegaconf OmegaConf` save and load methods Limitation then the source dict and the reloaded dict are the same iff the source dict did not contain any fancy stuff which is the reason why we want to use omegaconf