with open ('arbol.dot') as f:
    dot_graph =f.read()
graphviz.Source(dot_graph)

FileNotFoundError                         Traceback (most recent call last)
~Anaconda3libsite-packagesgraphvizbackend.py in pipe(engine, format,
data, quiet)
    153             stdout=subprocess.PIPE, stderr=subprocess.PIPE,
--> 154             startupinfo=STARTUPINFO)
    155     except OSError as e:

~Anaconda3libsubprocess.py in __init__(self, args, bufsize, executable,
stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env,
universal_newlines, startupinfo, creationflags, restore_signals,
start_new_session, pass_fds, encoding, errors)
    708                                 errread, errwrite,
--> 709                                 restore_signals, start_new_session)
    710         except:

~Anaconda3libsubprocess.py in _execute_child(self, args, executable,
preexec_fn, close_fds, pass_fds, cwd, env, startupinfo, creationflags,
shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite,
unused_restore_signals, unused_start_new_session)
    996                                          os.fspath(cwd) if cwd is
not None else None,
--> 997                                          startupinfo)
998             finally:

FileNotFoundError: [WinError 2] El sistema no puede encontrar el archivo
especificado

During handling of the above exception, another exception occurred:

ExecutableNotFound                        Traceback (most recent call last)
~Anaconda3libsite-packagesIPythoncoreformatters.py in __call__(self,
obj)
    334             method = get_real_method(obj, self.print_method)
    335             if method is not None:
--> 336                 return method()
    337             return None
    338         else:

~Anaconda3libsite-packagesgraphvizfiles.py in _repr_svg_(self)
    103
    104     def _repr_svg_(self):
--> 105         return self.pipe(format='svg').decode(self._encoding)
    106
    107     def pipe(self, format=None):

~Anaconda3libsite-packagesgraphvizfiles.py in pipe(self, format)
    122         data = text_type(self.source).encode(self._encoding)
    123
--> 124         outs = backend.pipe(self._engine, format, data)
    125
    126         return outs

~Anaconda3libsite-packagesgraphvizbackend.py in pipe(engine, format,
data, quiet)
    155     except OSError as e:
    156         if e.errno == errno.ENOENT:
--> 157             raise ExecutableNotFound(args)
    158         else:  # pragma: no cover
    159             raise

ExecutableNotFound: failed to execute ['dot', '-Tsvg'], make sure the
Graphviz executables are on your systems' PATH

Out[8]:
<graphviz.files.Source at 0x185b7555710>

C:UsersAspire E15Anaconda3Libsite-packagesgraphviz