我花了一个小时都没有解决这个问题,所以我决定在这里询问。唯一丰富的信息可以在这里找到,但没有详细的说明适用于我的情况。
我使用PyCharm连接离线Ubuntu 16.04服务器,在Windows 10上进行一些机器学习分类的尝试。
代码能够运行到某个点,然后就会抛出以下错误信息。
我使用PyCharm连接离线Ubuntu 16.04服务器,在Windows 10上进行一些机器学习分类的尝试。
代码能够运行到某个点,然后就会抛出以下错误信息。
Traceback (most recent call last):
File "/home/user/.local/lib/python3.5/site-packages/graphviz/backend.py", line 159, in run
proc = subprocess.Popen(cmd, startupinfo=get_startupinfo(), **kwargs)
File "/usr/lib/python3.5/subprocess.py", line 947, in __init__
restore_signals, start_new_session)
File "/usr/lib/python3.5/subprocess.py", line 1551, in _execute_child
raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'dot'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/user/project/2_input/xgboost_loop.py", line 55, in <module>
xgb.plot_tree(classifier, ax=plt.gca())
File "/home/user/.local/lib/python3.5/site-packages/xgboost/plotting.py", line 281, in plot_tree
s.write(g.pipe(format='png'))
File "/home/user/.local/lib/python3.5/site-packages/graphviz/files.py", line 138, in pipe
quiet=quiet)
File "/home/user/.local/lib/python3.5/site-packages/graphviz/backend.py", line 229, in pipe
out, _ = run(cmd, input=data, capture_output=True, check=True, quiet=quiet)
File "/home/user/.local/lib/python3.5/site-packages/graphviz/backend.py", line 162, in run
raise ExecutableNotFound(cmd)
graphviz.backend.ExecutableNotFound: failed to execute ['dot', '-Tpng'], make sure the Graphviz executables are on your systems' PATH
Process finished with exit code 1
我通过 pip list
命令检查了一下,在Ubuntu服务器上已经安装了 graphviz
版本为 0.13.2
。在给出的链接中建议将 whereis dot
的输出添加到要运行的文件中,如下所示:os.environ["PATH"] += os.pathsep + 'OUTPUT'
,但是除了 dot:
之外没有任何输出。
在本地,我也检查了我是否安装了相同的 graphviz
版本 0.13.2
。