98 lines
3.2 KiB
Python
98 lines
3.2 KiB
Python
"""
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Patches transformers 4.55.3 to register the qwen3_5 model type.
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Deploy steps on the remote machine:
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1. cp -r modified_scripts/qwen3_5 /usr/local/lib/python3.10/site-packages/transformers/models/qwen3_5
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2. python3 modified_scripts/patch_transformers_qwen3_5.py
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Target: pip-installed transformers at /usr/local/lib/python3.10/site-packages/transformers/
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(Not the corex pre-installed path at /usr/local/corex/lib64/python3/dist-packages/)
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"""
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import sys
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TRANSFORMERS_ROOT = "/usr/local/lib/python3.10/site-packages/transformers"
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AUTO_CONFIG = f"{TRANSFORMERS_ROOT}/models/auto/configuration_auto.py"
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MODELS_INIT = f"{TRANSFORMERS_ROOT}/models/__init__.py"
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def patch_file(path, replacements):
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with open(path, "r") as f:
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content = f.read()
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patched = False
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for old, new in replacements:
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if new in content:
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print(f" [skip] already patched: {repr(new[:60])}")
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continue
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if old not in content:
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print(f" [warn] anchor not found: {repr(old[:60])}")
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continue
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content = content.replace(old, new, 1)
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patched = True
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print(f" [ok] inserted after: {repr(old[:60])}")
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if patched:
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with open(path, "w") as f:
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f.write(content)
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def main():
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print(f"=== Patching {AUTO_CONFIG} ===")
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patch_file(AUTO_CONFIG, [
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# CONFIG_MAPPING_NAMES: insert qwen3_5 right after qwen3
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(
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'("qwen3", "Qwen3Config"),',
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'("qwen3", "Qwen3Config"),\n ("qwen3_5", "Qwen3_5Config"),',
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),
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# Some versions don't have trailing comma — handle that too
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(
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'("qwen3", "Qwen3Config")\n',
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'("qwen3", "Qwen3Config"),\n ("qwen3_5", "Qwen3_5Config"),\n',
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),
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# MODEL_NAMES_MAPPING (model_type -> human readable name, used by docstring generator)
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(
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'("qwen3", "Qwen3"),',
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'("qwen3", "Qwen3"),\n ("qwen3_5", "Qwen3_5"),',
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),
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(
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'("qwen3", "Qwen3")\n',
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'("qwen3", "Qwen3"),\n ("qwen3_5", "Qwen3_5"),\n',
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),
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])
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print(f"\n=== Patching {MODELS_INIT} ===")
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patch_file(MODELS_INIT, [
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(
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"from .qwen3 import *\n",
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"from .qwen3 import *\n from .qwen3_5 import *\n",
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),
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])
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# Verification
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print("\n=== Verification ===")
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try:
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import importlib.util, types
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# Quick smoke-test: import the config class directly
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spec = importlib.util.spec_from_file_location(
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"configuration_qwen3_5",
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f"{TRANSFORMERS_ROOT}/models/qwen3_5/configuration_qwen3_5.py",
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)
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mod = importlib.util.module_from_spec(spec)
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# Provide minimal parent package stubs so relative imports resolve
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pkg = types.ModuleType("transformers")
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pkg.__path__ = [TRANSFORMERS_ROOT]
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sys.modules.setdefault("transformers", pkg)
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spec.loader.exec_module(mod)
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cfg = mod.Qwen3_5Config()
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print(f" Qwen3_5Config() smoke-test OK (model_type={cfg.model_type})")
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except Exception as e:
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print(f" [warn] smoke-test failed (may be fine at runtime): {e}")
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print("\nDone.")
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if __name__ == "__main__":
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main()
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