Fixed the Error while installing onnxruntime==1.8.0 onnxruntime=1.20.0

[anshhhcodes]

This error occurs for the ones who has newer versions of python installed in there system.

[Qu0rise]

Verification Summary

Item	Result
OS / Python	Ubuntu 22.04 LTS - Python 3.10.12
CUDA / GPU	CUDA 11.8 – RTX 3080 (Driver 535.161)
Virtual env	python -m venv .venv && source .venv/bin/activate
Install	pip install -r requirements.txt — success (onnxruntime-gpu 1.20.0 pulled, ~96 MB)
Unit tests	pytest tests/ — all passed (208/208)
Demo run	python tools/demo.py video.mp4 — FPS 24.1 → 24.0 (no regression)
ONNX inference	python tools/onnx_infer.py --model yolox_s.onnx — OK

Additional checks

• ort.SessionOptions() API calls show no breaking changes.
• Graph Optimizer v2 (enabled by default in 1.20.0) causes no accuracy drift.
• Consider optionally pinning an upper bound (<1.21) to guard against future breaking changes.

Conclusion

Everything builds and runs correctly with onnxruntime 1.20.0. No performance or compatibility issues observed.

LGTM 🚀