pip install -qr requirements.txt
ERROR: Could not find a version that satisfies the requirement pycocotools==2.0 (from versions: 2.0.0, 2.0.1, 2.0.2a1, 2.0.2, 2.0.3)
ERROR: No matching distribution found for pycocotools==2.0

순서대로
pip install python
pip install numpy
pip3 install "git+https://github.com/philferriere/c
ocoapi.git#egg=pycocotools&subdirectory=PythonAPI"
git clone https://github.com/JunnYu/mish-cuda
cd mish-cuda
python setup.py build install
cd ..
cd /yolor
bash scripts/get_coco.sh
cd /yolor
bash scripts/get_pretrain.sh