pytorch

84949672 - Fix exception chaining in `test/` (#44193)

Fix exception chaining in `test/` (#44193) Summary: ## Motivation This PR fixes https://github.com/pytorch/pytorch/issues/43770 and is the continuation of https://github.com/pytorch/pytorch/issues/43836. ## Description of the change This PR fixes exception chaining only in files under `test/` where appropriate. To fix exception chaining, I used either: 1. `raise new_exception from old_exception` where `new_exception` itself seems not descriptive enough to debug or `old_exception` delivers valuable information. 2. `raise new_exception from None` where raising both of `new_exception` and `old_exception` seems a bit noisy and redundant. ## List of lines containing `raise` in `except` clause: I wrote [this simple script](https://gist.github.com/akihironitta/4223c1b32404b36c1b349d70c4c93b4d) using [ast](https://docs.python.org/3.8/library/ast.html#module-ast) to list lines where `raise`ing in `except` clause. - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_cpp_extensions_aot.py#L16 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit.py#L2503 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/onnx/model_defs/word_language_model.py#L22 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/onnx/verify.py#L73 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/onnx/verify.py#L110 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/onnx/test_verify.py#L31 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_c10d.py#L255 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_c10d.py#L2992 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_c10d.py#L3025 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_c10d.py#L3712 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_distributed.py#L3180 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_distributed.py#L3198 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_data_parallel.py#L752 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/distributed/test_data_parallel.py#L776 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_type_hints.py#L151 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit_fuser.py#L771 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit_fuser.py#L773 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dispatch.py#L105 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_distributions.py#L4738 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_nn.py#L9824 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_namedtensor.py#L843 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit_fuser_te.py#L875 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_jit_fuser_te.py#L877 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dataloader.py#L31 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dataloader.py#L43 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dataloader.py#L365 - [x] https://github.com/pytorch/pytorch/blob/f8f35fddd4b2bd788953d6d6ccfadf690b73a3e8/test/test_dataloader.py#L391 Pull Request resolved: https://github.com/pytorch/pytorch/pull/44193 Reviewed By: albanD Differential Revision: D23681529 Pulled By: malfet fbshipit-source-id: 7c2256ff17334625081137b35baeb816c1e53e0b