MnistModel.get_submodule#
- MnistModel.get_submodule(target: str) Module #
Returns the submodule given by
target
if it exists, otherwise throws an error.For example, let’s say you have an
nn.Module
A
that looks like this:(The diagram shows an
nn.Module
A
.A
has a nested submodulenet_b
, which itself has two submodulesnet_c
andlinear
.net_c
then has a submoduleconv
.)To check whether or not we have the
linear
submodule, we would callget_submodule("net_b.linear")
. To check whether we have theconv
submodule, we would callget_submodule("net_b.net_c.conv")
.The runtime of
get_submodule
is bounded by the degree of module nesting intarget
. A query againstnamed_modules
achieves the same result, but it is O(N) in the number of transitive modules. So, for a simple check to see if some submodule exists,get_submodule
should always be used.- Args:
- target: The fully-qualified string name of the submodule
to look for. (See above example for how to specify a fully-qualified string.)
- Returns:
torch.nn.Module: The submodule referenced by
target
- Raises:
- AttributeError: If the target string references an invalid
path or resolves to something that is not an
nn.Module