First, git clone the MMdnn
git clone https://github.com/Microsoft/MMdnn Commit pytorch_parser.py from Line 67 to Line 76, and add model = model_file_name at Line 77.
It might look like this.
def __init__(self, model_file_name, input_shape):
super(PytorchParser, self).__init__()
# if not os.path.exists(model_file_name):