8ec9a74fd3Follow-up cleanups to the merged AMD ROCm support PR #5301: 1. De-duplicate the torchao Windows-ROCm import stub into a single shared module (studio/backend/core/_torchao_stub.py); both workers call one install_torchao_windows_rocm_stub() entrypoint. 2. Align the gfx name/arch comment columns in setup.sh and setup.ps1. 3. Isolate the float16 dtype fallback to AMD without native bf16; NVIDIA keeps dtype=None so unsloth's own bf16/fp16/FORCE_FLOAT32 detection is honored. 4. Hoist unconditional stdlib imports (gc, glob, re, subprocess, copy, types, sys, importlib.metadata) from function bodies to module top across the PR #5301-touched files; heavy/optional/relative imports stay lazy. 5. bitsandbytes Windows-ROCm install now uses plain pip (force_pip=True) instead of UV_SKIP_WHEEL_FILENAME_CHECK, per the AMD hackathon docs. Also adds scripts/verify_import_hoist.py (a scope-aware LEGB AST resolver that catches dangling-alias and rename-clash bugs in import-hoist refactors) and wires it into the Lint CI source-lint job as a self-test plus a pull_request compare gate. |
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