Data Table: error message when opening some single-cell datasets

[elapraznik]

Describe the bug When I pass on some loaded datasets from Single Cell Datasets widget to Data Table I get an error message. The dataset can still be opened in the data table. The datasets showcasing this error are:

1. Healthy human bone marrow
2. AML patient bone marrow day 0
3. AML patient bone marrow day 15
4. AML patient bone marrow day 31

To Reproduce Steps to reproduce the behavior:

1. Go to Orange canvas and open Single Cell Datasets widget
2. Load the listed datasets
3. Pass the loaded dataset on to Data Table

Screenshots The error message I get in all 4 cases:

Traceback (most recent call last): File "/opt/miniconda3/envs/orange3/lib/python3.10/site-packages/Orange/widgets/data/owdatasets.py", line 605, in __commit_complete self.load_and_output(path) File "/opt/miniconda3/envs/orange3/lib/python3.10/site-packages/Orange/widgets/data/owdatasets.py", line 636, in load_and_output data = self.load_data(path) File "/opt/miniconda3/envs/orange3/lib/python3.10/site-packages/orangecontrib/single_cell/widgets/owscdatasets.py", line 38, in load_data data = Orange.data.Table(path) File "/opt/miniconda3/envs/orange3/lib/python3.10/site-packages/Orange/data/table.py", line 713, in new return cls.from_file(args[0], **kwargs) File "/opt/miniconda3/envs/orange3/lib/python3.10/site-packages/Orange/data/table.py", line 1104, in from_file data = reader.read() File "/opt/miniconda3/envs/orange3/lib/python3.10/site-packages/Orange/data/io.py", line 208, in read table = pickle.load(f) File "/opt/miniconda3/envs/orange3/lib/python3.10/site-packages/Orange/data/variable.py", line 38, in make_variable return cls(*args, compute_value=compute_value) TypeError: DiscreteVariable.init() got multiple values for argument 'compute_value'

Desktop:

• OS: macOS
• Python Version: 3.10
• Orange Version: 3.36.2
• Add-on Version: Single Cell Add-on 1.5.0