I was trying to install the module ultralytics (for YOLOv8) in the bash of hosting service PythonAnywhere
I tried:
pip  install ultralytics
But get:

ERROR: Could not find a version that satisfies the requirement ultralytics (from versions: none)
ERROR: No matching distribution found for ultralytics

I can install using the same method in my local machine , but having trouble in PythonAnywhere
I upgraded pip, but no difference
Why is this happening?
Try to install a newer version of Python with version >= 3.7
Then run python -m pip install --upgrade pip to upgrade your pip and install ultralytics again.
Cannot install Ultralytics using pip in PythonAnywhere