来源：Paddle2ONNX

Paddle2ONNX/tools/onnx/README.md at develop · PaddlePaddle/Paddle2ONNX · GitHub

依赖：import onnx

python rename_onnx_model.py --model model.onnx --origin_names x y z --new_names x1 y1 z1 --save_file new_model.onnx

其中 origin_names 和 new_names，前者表示原模型中各个命名（可指定多个），后者表示新命名，两个参数指定的命名个数需要相同 

 

import argparse
import sysdef parse_arguments():parser = argparse.ArgumentParser()parser.add_argument('--model',required=True,help='Path of directory saved the input model.')parser.add_argument('--origin_names',required=True,nargs='+',help='The original name you want to modify.')parser.add_argument('--new_names',required=True,nargs='+',help='The new name you want change to, the number of new_names should be same with the number of origin_names')parser.add_argument('--save_file', required=True, help='Path to save the new onnx model.')return parser.parse_args()if __name__ == '__main__':args = parse_arguments()import onnxmodel = onnx.load(args.model)output_tensor_names = set()for ipt in model.graph.input:output_tensor_names.add(ipt.name)for node in model.graph.node:for out in node.output:output_tensor_names.add(out)for origin_name in args.origin_names:if origin_name not in output_tensor_names:print("[ERROR] Cannot find tensor name '{}' in onnx model graph.".format(origin_name))sys.exit(-1)if len(set(args.origin_names)) < len(args.origin_names):print("[ERROR] There's dumplicate name in --origin_names, which is not allowed.")sys.exit(-1)if len(args.new_names) != len(args.origin_names):print("[ERROR] Number of --new_names must be same with the number of --origin_names.")sys.exit(-1)if len(set(args.new_names)) < len(args.new_names):print("[ERROR] There's dumplicate name in --new_names, which is not allowed.")sys.exit(-1)for new_name in args.new_names:if new_name in output_tensor_names:print("[ERROR] The defined new_name '{}' is already exist in the onnx model, which is not allowed.")sys.exit(-1)for i, ipt in enumerate(model.graph.input):if ipt.name in args.origin_names:idx = args.origin_names.index(ipt.name)model.graph.input[i].name = args.new_names[idx]for i, node in enumerate(model.graph.node):for j, ipt in enumerate(node.input):if ipt in args.origin_names:idx = args.origin_names.index(ipt)model.graph.node[i].input[j] = args.new_names[idx]for j, out in enumerate(node.output):if out in args.origin_names:idx = args.origin_names.index(out)model.graph.node[i].output[j] = args.new_names[idx]for i, out in enumerate(model.graph.output):if out.name in args.origin_names:idx = args.origin_names.index(out.name)model.graph.output[i].name = args.new_names[idx]onnx.checker.check_model(model)onnx.save(model, args.save_file)print("[Finished] The new model saved in {}.".format(args.save_file))print("[DEBUG INFO] The inputs of new model: {}".format([x.name for x in model.graph.input]))print("[DEBUG INFO] The outputs of new model: {}".format([x.name for x in model.graph.output]))