Closed
Description
$ python diffgram_example_stream.py
Traceback (most recent call last):
File "diffgram_example_stream.py", line 8, in <module>
'labels.cars > 3')
File "c:\python-sdk\sdk\diffgram\core\directory.py", line 146, in slice
original_directory = self
File "c:\python-sdk\sdk\diffgram\core\sliced_directory.py", line 14, in __init__
self.file_id_list = self.all_file_ids()
File "c:\python-sdk\sdk\diffgram\core\sliced_directory.py", line 26, in all_file_ids
result = result + diffgram_files
TypeError: can only concatenate list (not "bool") to list
May be file list returning False
I'm not sure yet how we we want to handle raising exceptions in a case like this.
This specific case is appears to be from an invalid query - the label car exists but not cars plural.
Ideally it should warn the query is invalid becuase the label doesn't exist or something?
Maybe more generally we should raise query errors ?
Seems like at least 2 parts, hardening the handling if no files, and also better raising query exceptions rather then just bool False
Code to reproduce on lastest sdk
from diffgram import Project
coco_project = Project(project_string_id='coco-dataset')
default_dataset = coco_project.directory.get(name='Default')
sliced_dataset = default_dataset.slice(
'labels.cars > 3')