First of all, thanks for this great piece of software!

Problem

Without internet connection, calling detect.py fails. It seems that even when a local copy of weights is available, the code still tries to load a set of weights from an online resource.

Commenting this line prevents the error and the code runs as expected:

However, as I am using the yolov5 version from PyPI, which is dynamically installed into a virtual environment, commenting is not a long-term option.

Request

@glenn-jocher Would it be possible to include a switch, where the code only tries to load weights from an online resource if the weights are not found locally? This would also be in line with the comment at:

Thanks in advance!