Dependency installation fails in main and v0.1.0

[mingxin-zheng]

🔍 Describe the bug

When we install the environment for robotic_ultrasound, we met

ERROR: Could not find a version that satisfies the requirement pyav>=12.0.5 (from lerobot) (from versions: none)
ERROR: No matching distribution found for pyav>=12.0.5

🛠️ To Reproduce

bash tools/env_setup_robotus.sh

💻 Expected behavior
Dependency installed successfully

📝 Additional context
pyav is required by lerobot commit 6674e368249472c91382eb54bb8501c94c7f0c56. In a later version ed83cbd4f2091a3e97cdd0c48cc657020c037240, it is changed to av:

huggingface/lerobot@ed83cbd

Also, it seems the pyav is no longer a valid pypi source
Last time it still worked:

• Apr 30 2025 (blossom CI run)
• May 6 2025 (my local installation in a new machine)

First failure spotted on:

• May 8 2025 (blossom CI run)

$ pip install "pyav>=12.0.5"
ERROR: Could not find a version that satisfies the requirement pyav>=12.0.5 (from versions: none)
ERROR: No matching distribution found for pyav>=12.0.5