[BUG] UnboundLocalError: local variable 'd' referenced before assignment

[taomanwai]

Instructions

System information

• Linux Ubuntu
• FiftyOne installed from pip
• FiftyOne v0.11.2
• Python v3.8.5

Commands to reproduce

python app.py

Describe the problem

I wrote app.py to load coco-2017 dataset and launch web app of fiftyone, but crash with Exception

Code to reproduce issue

import fiftyone as fo
import fiftyone.zoo as foz

dataset = foz.load_zoo_dataset(
    "coco-2017",
    split="validation",
    dataset_name="evaluate-detections-tutorial",
)
dataset.persistent = True

session = fo.launch_app(dataset)

session.wait()

Other info / logs

Log is:
Downloading split 'validation' to '/home/tommytao/fiftyone/coco-2017/validation' if necessary
Found annotations at '/home/tommytao/fiftyone/coco-2017/raw/instances_val2017.json'
Images already downloaded
Uncaught exception
Traceback (most recent call last):
File "51app.py", line 4, in
dataset = foz.load_zoo_dataset(
File "/home/tommytao/miniconda3/envs/ai/lib/python3.8/site-packages/fiftyone/zoo/datasets/init.py", line 195, in load_zoo_dataset
info, dataset_dir = download_zoo_dataset(
File "/home/tommytao/miniconda3/envs/ai/lib/python3.8/site-packages/fiftyone/zoo/datasets/init.py", line 116, in download_zoo_dataset
return zoo_dataset.download_and_prepare(
File "/home/tommytao/miniconda3/envs/ai/lib/python3.8/site-packages/fiftyone/zoo/datasets/init.py", line 1022, in download_and_prepare
) = self._download_and_prepare(split_dir, scratch_dir, split)
File "/home/tommytao/miniconda3/envs/ai/lib/python3.8/site-packages/fiftyone/zoo/datasets/base.py", line 770, in _download_and_prepare
num_samples, classes, downloaded = fouc.download_coco_dataset_split(
File "/home/tommytao/miniconda3/envs/ai/lib/python3.8/site-packages/fiftyone/utils/coco.py", line 1617, in download_coco_dataset_split
if d is None:
UnboundLocalError: local variable 'd' referenced before assignment

What areas of FiftyOne does this bug affect?

• App: FiftyOne application issue
• Core: Core fiftyone Python library issue
• Server: Fiftyone server issue

Willingness to contribute

The FiftyOne Community encourages bug fix contributions. Would you or another
member of your organization be willing to contribute a fix for this bug to the
FiftyOne codebase?

• Yes. I can contribute a fix for this bug independently.
• Yes. I would be willing to contribute a fix for this bug with guidance
  from the FiftyOne community.
• No. I cannot contribute a bug fix at this time.

[brimoor]

Hi @taomanwai 👋 thanks for reporting. This is fixed in fiftyone==0.11.2.1 and you can upgrade like so:

pip install --upgrade fiftyone

[taomanwai]

Thanks, work now