Solved by ptrblck in post #6 
              
              
                In this case you could use the following code: 
model.classifier = nn.Sequential(*[model.classifier[i] for i in range(4)])
print(model.classifier)

EDIT: 
Alternatively, you can also call .children, since the range indexing might be cumbersome for large sequential models. 
model.classifier = nn.Sequ…