torch/csrc/lazy/python/README.md - platform/external/pytorch - Git at Google


            
            # Lazy Tensor Python Code


            Lazy Tensor Core is part of libtorch, which can not depend on python.


            Parts of lazy tensor core use python for 2 purposes

            
            A) py bindings let python programs call into lazy tensor c++ code

            
            B) lazy tensor core calls into python to use it (e.g. for grabbing stack traces)


            (A) is trivial since the python bindings only depend on libtorch;

            
            (B) requires making libtorch_python register a function with libtorch if loaded, and having a default (no-op) function otherwise.  Any functionality that strictly needs to depend on python should be part of the 'python' folder.
	# Lazy Tensor Python Code

	Lazy Tensor Core is part of libtorch, which can not depend on python.

	Parts of lazy tensor core use python for 2 purposes
	A) py bindings let python programs call into lazy tensor c++ code
	B) lazy tensor core calls into python to use it (e.g. for grabbing stack traces)

	(A) is trivial since the python bindings only depend on libtorch;
	(B) requires making libtorch_python register a function with libtorch if loaded, and having a default (no-op) function otherwise. Any functionality that strictly needs to depend on python should be part of the 'python' folder.