Setting environment for Google Colab with python 3.9

[MuMiMaNz]

I've spent a week searching for a solution to dependency compatibility issues that many people seem to be struggling with. Finally, I found a set of dependencies that work well with Python 3.9. I hope this saves you some time:

Install PyTorch and torchvision:

!pip install torch==1.11.0+cu113 torchvision==0.12.0+cu113 -f https://download.pytorch.org/whl/torch_stable.html
Install openmim, mmcv-full, timm, and mmdet:

!pip install -U openmim
!mim install mmcv-full==1.5.0
!pip install timm==0.6.11 mmdet==2.28.1

Clone the Swin-Transformer-Object-Detection repository and run the setup (this will replace mmdet to 2.11):

!git clone https://github.com/SwinTransformer/Swin-Transformer-Object-Detection
%cd /SwinTransformer-Object-Detection
!python setup.py develop

Lastly, install mmpycocotools:

!pip install mmpycocotools

I hope this helps you save valuable time in setting up your environment."