[GitHub] szha opened a new pull request #7265: add getitem to container layers

[gi...@git.apache.org]

szha opened a new pull request #7265: add getitem to container layers
URL: https://github.com/apache/incubator-mxnet/pull/7265
 
 
   This is to add `__getitem__` to the container layers so that it's easier to locate the child layers along with their weights. For example:
   ```
   In [1]: from mxnet.gluon.model_zoo import vision as models
   
   In [2]: net = models.alexnet(True)
   
   In [3]: net.classifier
   Out[3]:
   HybridSequential(
     (0): Dense(4096, Activation(relu))
     (1): Dropout(p = 0.5)
     (2): Dense(4096, Activation(relu))
     (3): Dropout(p = 0.5)
     (4): Dense(1000, linear)
   )
   
   In [4]: net.classifier[2]
   Out[4]: Dense(4096, Activation(relu))
   
   In [5]: net.classifier[4]
   Out[5]: Dense(1000, linear)
   ```
 
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