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Commit95a012f

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Adds command line to translate de model into code (#49)
* Adds command line to translate de model into code* doc
1 parent5e3668d commit95a012f

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4 files changed

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4 files changed

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‎CHANGELOGS.rst‎

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0.1.3
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+++++
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*:pr:`49`: adds command line to export a model into code
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*:pr:`48`: support for subgraph in light API
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*:pr:`47`: extends export onnx to code to support inner API
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*:pr:`46`: adds an export to convert an onnx graph into light API code
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importos
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importtempfile
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importunittest
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fromcontextlibimportredirect_stdout
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fromioimportStringIO
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fromonnximportTensorProto
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fromonnx.helperimport (
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make_graph,
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make_model,
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make_node,
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make_opsetid,
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make_tensor_value_info,
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)
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fromonnx_array_api.ext_test_caseimportExtTestCase
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fromonnx_array_api._command_lines_parserimport (
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get_main_parser,
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get_parser_translate,
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main,
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)
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classTestCommandLines1(ExtTestCase):
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deftest_main_parser(self):
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st=StringIO()
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withredirect_stdout(st):
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get_main_parser().print_help()
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text=st.getvalue()
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self.assertIn("translate",text)
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deftest_parser_translate(self):
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st=StringIO()
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withredirect_stdout(st):
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get_parser_translate().print_help()
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text=st.getvalue()
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self.assertIn("model",text)
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deftest_command_translate(self):
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X=make_tensor_value_info("X",TensorProto.FLOAT, [None,None])
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Y=make_tensor_value_info("Y",TensorProto.FLOAT, [5,6])
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Z=make_tensor_value_info("Z",TensorProto.FLOAT, [None,None])
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graph=make_graph(
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[
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make_node("Add", ["X","Y"], ["res"]),
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make_node("Cos", ["res"], ["Z"]),
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],
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"g",
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[X,Y],
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[Z],
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)
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onnx_model=make_model(graph,opset_imports=[make_opsetid("",18)])
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withtempfile.TemporaryDirectory()asroot:
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model_file=os.path.join(root,"model.onnx")
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withopen(model_file,"wb")asf:
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f.write(onnx_model.SerializeToString())
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args= ["translate","-m",model_file]
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st=StringIO()
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withredirect_stdout(st):
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main(args)
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code=st.getvalue()
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self.assertIn("model = make_model(",code)
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args= ["translate","-m",model_file,"-a","light"]
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st=StringIO()
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withredirect_stdout(st):
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main(args)
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code=st.getvalue()
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self.assertIn("start(opset=",code)
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if__name__=="__main__":
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unittest.main(verbosity=2)

‎onnx_array_api/__main__.py‎

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from ._command_lines_parserimportmain
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if__name__=="__main__":
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main()
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importsys
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importonnx
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fromtypingimportAny,List,Optional
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fromargparseimportArgumentParser
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fromtextwrapimportdedent
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defget_main_parser()->ArgumentParser:
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parser=ArgumentParser(
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prog="onnx-array-api",
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description="onnx-array-api main command line.",
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epilog="Type 'python -m onnx_array_api <cmd> --help' "
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"to get help for a specific command.",
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)
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parser.add_argument(
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"cmd",
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choices=["translate"],
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help=dedent(
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"""
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Selects a command.
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'translate' exports an onnx graph into a piece of code replicating it.
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"""
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),
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)
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returnparser
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defget_parser_translate()->ArgumentParser:
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parser=ArgumentParser(
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prog="translate",
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description=dedent(
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"""
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Translates an onnx model into a piece of code to replicate it.
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The result is printed on the standard output.
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"""
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),
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epilog="This is mostly used to write unit tests without adding "
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"an onnx file to the repository.",
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)
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parser.add_argument(
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"-m",
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"--model",
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type=str,
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required=True,
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help="onnx model to translate",
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)
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parser.add_argument(
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"-a",
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"--api",
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choices=["onnx","light"],
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default="onnx",
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help="API to choose, API from onnx package or light API.",
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)
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returnparser
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def_cmd_translate(argv:List[Any]):
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from .light_apiimporttranslate
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parser=get_parser_translate()
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args=parser.parse_args(argv[1:])
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onx=onnx.load(args.model)
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code=translate(onx,api=args.api)
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print(code)
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defmain(argv:Optional[List[Any]]=None):
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fcts=dict(translate=_cmd_translate)
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ifargvisNone:
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argv=sys.argv[1:]
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if (len(argv)<=1andargv[0]notinfcts)orargv[-1]in ("--help","-h"):
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iflen(argv)<2:
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parser=get_main_parser()
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parser.parse_args(argv)
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else:
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parsers=dict(translate=get_parser_translate)
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cmd=argv[0]
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ifcmdnotinparsers:
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raiseValueError(
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f"Unknown command{cmd!r}, it should be in{list(sorted(parsers))}."
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)
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parser=parsers[cmd]()
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parser.parse_args(argv[1:])
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raiseRuntimeError("The programme should have exited before.")
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cmd=argv[0]
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ifcmdinfcts:
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fcts[cmd](argv)
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else:
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raiseValueError(
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f"Unknown command{cmd!r}, use --help to get the list of known command."
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)

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