pytorch网络结构可视化graphviz.backend.ExecutableNotFound: failed to execute [‘dot‘, ‘-Tpdf‘, ‘-O‘, ‘

    Traceback (most recent call last):
      File "/data/user1/pkgs/conda/envs/drc/lib/python3.7/site-packages/graphviz/backend.py", line 129, in render
    subprocess.check_call(args, stderr=stderr, **POPEN_KWARGS)
      File "/data/user1/pkgs/conda/envs/drc/lib/python3.7/subprocess.py", line 358, in check_call
    retcode = call(*popenargs, **kwargs)
      File "/data/user1/pkgs/conda/envs/drc/lib/python3.7/subprocess.py", line 339, in call
    with Popen(*popenargs, **kwargs) as p:
      File "/data/user1/pkgs/conda/envs/drc/lib/python3.7/subprocess.py", line 800, in __init__
    restor