尝试使用keras.utils.plot_model时发生错误

问题描述

我正在尝试使用Keras软件包在Python中绘制深度学习模型的图/图，但不幸的是，它一直给我一个错误，信息不多.

I am trying to make a plot/graph of deep learning model in Python using Keras package but unfortunately it keeps giving me an error which is not very informative.

我在使用Python 3.5.2，Anaconda 4.2.0，Keras 2.1.6的Linux上运行python，并使用tensorflow-gpu 1.7.0后端.

I run python on Linux with Python 3.5.2, Anaconda 4.2.0, Keras 2.1.6 and I use tensorflow-gpu 1.7.0 Backend.

这是错误消息:

keras.utils.plot_model(unet, to_file='model.png', show_shapes=False, show_layer_names=True, rankdir='TB')

['dot', '-Tps', '/tmp/tmphesl1j0c'] return code: 127

stdout, stderr:
 b''
b'dot: error while loading shared libraries: libexpat.so.0: cannot open shared object file: No such file or directory\n'

---------------------------------------------------------------------------
AssertionError                            Traceback (most recent call last)
<ipython-input-9-60bb0e3b97bd> in <module>()
----> 1 keras.utils.plot_model(unet, to_file='model.png', show_shapes=False, show_layer_names=True, rankdir='TB')

/.../anaconda3-4.2.0/lib/python3.5/site-packages/keras/utils/vis_utils.py in plot_model(model, to_file, show_shapes, show_layer_names, rankdir)
    132             'LR' creates a horizontal plot.
    133     """
--> 134     dot = model_to_dot(model, show_shapes, show_layer_names, rankdir)
    135     _, extension = os.path.splitext(to_file)
    136     if not extension:

/.../anaconda3-4.2.0/lib/python3.5/site-packages/keras/utils/vis_utils.py in model_to_dot(model, show_shapes, show_layer_names, rankdir)
     53     from ..models import Sequential
     54 
---> 55     _check_pydot()
     56     dot = pydot.Dot()
     57     dot.set('rankdir', rankdir)

/.../anaconda3-4.2.0/lib/python3.5/site-packages/keras/utils/vis_utils.py in _check_pydot()
     24         # Attempt to create an image of a blank graph
     25         # to check the pydot/graphviz installation.
---> 26         pydot.Dot.create(pydot.Dot())
     27     except OSError:
     28         raise OSError(

/.../anaconda3-4.2.0/lib/python3.5/site-packages/pydot.py in create(self, prog, format, encoding)
   1882                      out=stdout_data,
   1883                      err=stderr_data))
-> 1884         assert p.returncode == 0, p.returncode
   1885         return stdout_data

AssertionError: 127

如果有人可以帮助我解决这个错误，我将不胜感激.

I would really appreciate if somebody could help me with this error.

注意:pydot和graphviz均已安装

Note: both pydot and graphviz are intalled

推荐答案

对我来说，解决方案是:

For me the solution was:

• conda install pydotplus (pydot-ng不能与tensorflow-gpu一起安装).
• 在anaconda目录中搜索viz_utils.py并将其全部打开.确保在所有地方都导入了pydot，方法如下:

• conda install pydotplus (pydot-ng was not installable with tensorflow-gpu it said).
• Search for viz_utils.py in anaconda directory and open all of them. Make sure everywhere pydot is imported, it is done the following way:

try:
  # pydot-ng is a fork of pydot that is better maintained.
  import pydot_ng as pydot
except ImportError:
  # pydotplus is an improved version of pydot
  try:
    import pydotplus as pydot
  except ImportError:
    # Fall back on pydot if necessary.
    try:
      import pydot
    except ImportError:
      pydot = None

其中一个文件只是说 import pyplot .更改之后，它对我有用.

There was one of the files where it just said import pyplot. After changing that, it worked for me.

这篇关于尝试使用keras.utils.plot_model时发生错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！