Object detection example broken about lightning-flash

[Borda]

Upon installing with pip install lightning-flash in a clean environment, it shows me that pytorch-lightning==2.0.2

most likely this pin adjustment was not yet released, so pls install ut from source for now:
pip install https://github.com/Lightning-Universe/lightning-flash/archive/refs/heads/master.zip

[Borda]

shall be fixed in https://github.com/Lightning-Universe/lightning-flash/releases/tag/0.8.2

[Borda]

@lorinczszabolcs would you be interested in debugging it further and eventually sending a fix? 🦩

[lorinczszabolcs]

I retried it now, and now a different error is given:

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
[<ipython-input-2-430f4efffa8e>](https://localhost:8080/#) in <cell line: 1>()
----> 1 import flash
      2 from flash.core.data.utils import download_data
      3 from flash.image import ObjectDetectionData, ObjectDetector
      4 
      5 # 1. Create the DataModule

2 frames
[/usr/local/lib/python3.10/dist-packages/flash/core/data/utils.py](https://localhost:8080/#) in <module>
     20 import requests
     21 import urllib3
---> 22 from pytorch_lightning.utilities.apply_func import apply_to_collection
     23 from torch import nn
     24 from tqdm.auto import tqdm as tq

ModuleNotFoundError: No module named 'pytorch_lightning.utilities.apply_func'

Unfortunately I won't have the time to look into it in detail, but it still seems like it is some package version related issue (possibly caused by pytorch-lightning 2.0.0 (lightning 2.0.0) release.

[Borda]

possibly caused by pytorch-lightning 2.0.0 (lightning 2.0.0) release

Flash has pin dependency bellow 2.0

[lorinczszabolcs]

Upon installing with pip install lightning-flash in a clean environment, it shows me that pytorch-lightning==2.0.2 gets installed. The following message is shown meanwhile: Collecting pytorch-lightning>=1.3.6 (from lightning-flash), indicating that the pinned dependency is >=1.3.6. even though I can see that is not the case here:

lightning-flash/requirements.txt

Line 8 in 14c2755

pytorch-lightning >1.6.0, <1.9.0 # strict

Any idea why that's happening?