[GitHub] feevos commented on issue #10101: gluon feature request: proper registration/initialization of layers inside a list (container) for custom (Hybrid)Blocks

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feevos commented on issue #10101: gluon feature request: proper registration/initialization of layers inside a list (container) for custom (Hybrid)Blocks
URL: https://github.com/apache/incubator-mxnet/issues/10101#issuecomment-373237657
 
 
   Hi @szha  and @sxjscience thank you very much for your reply. So if I understand correctly, (Hybrid)Sequential can also be used as a container of the various layers and indexed just like a list **so I can use the contained layers in any _order_ I want** (without the stacked sequential forward functionality). If I understand correctly, I can use something like:
   
   ```Python
   class CustomNet(HybridSequential):
   
       def __init__(self,**kwards):
           HybridSequential.__init__(self,**kwards)
   
           with self.name_scope():
               self.net = HybridSequential()
               # Add some convolution operators
               for i in range(3):
                   net.add(Conv2D(....))
   
       # Change the order of the layers in the self.net. 
       # This is not equivalent to self.net(input)
       def hybrid_forward(self,F, input):
           out = self.net[2]( input)
           out = self.net[0] (out) 
           out = self.net[1] (out) 
   
          return out
   ```
   if my understanding is correct then yes, there is no need for something similar to ModuleList. I haven't seen anything like what you just described in the documentation (it would be nice to add it in the gluon [book](http://gluon.mxnet.io/) and API). 
   
   Thank you very much! 
   

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