$ pip install -r requirements.txt
Collecting bluepy==0.9.11 (from -r requirements.txt (line 1))
Could not find a version that satisfies the requirement bluepy==0.9.11 (from -r requirements.txt (line 1)) (from versions: 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.4)
No matching distribution found for bluepy==0.9.11 (from -r requirements.txt (line 1))