Matlab engine for python import failure

1 次查看（过去 30 天）
Degang
Degang 2015-6-2
评论： Evan 2015-8-12
Mac OS X 10.10.3, Python 3.4.3, Matlab2015a.
I installed the matlab engine for python according to the instruction found here. However, whenever I try to import matlab.engine in python, I will get the following error message:
Python 3.4.3 (default, Apr 7 2015, 08:05:21)
Type "copyright", "credits" or "license" for more information.
IPython 3.1.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
Using matplotlib backend: MacOSX
In [1]: import matlab.engine
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
/usr/local/lib/python3.4/site-packages/matlab/engine/__init__.py in <module>()
40 try:
---> 41 pythonengine = importlib.import_module("matlabengineforpython"+_PYTHONVERSION)
42 except:
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/__init__.py in import_module(name, package)
108 level += 1
--> 109 return _bootstrap._gcd_import(name[level:], package, level)
110
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _gcd_import(name, package, level)
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _find_and_load(name, import_)
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _find_and_load_unlocked(name, import_)
ImportError: No module named 'matlabengineforpython3_4'
During handling of the above exception, another exception occurred:
ImportError Traceback (most recent call last)
/usr/local/lib/python3.4/site-packages/matlab/engine/__init__.py in <module>()
56 os.environ[_envs[_arch]] = _bin_dir
---> 57 pythonengine = importlib.import_module("matlabengineforpython"+_PYTHONVERSION)
58 except:
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/__init__.py in import_module(name, package)
108 level += 1
--> 109 return _bootstrap._gcd_import(name[level:], package, level)
110
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _gcd_import(name, package, level)
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _find_and_load(name, import_)
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _find_and_load_unlocked(name, import_)
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _load_unlocked(self)
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _load_backward_compatible(self)
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _check_name_wrapper(self, name, *args, **kwargs)
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in load_module(self, fullname)
/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/python3.4/importlib/_bootstrap.py in _call_with_frames_removed(f, *args, **kwds)
ImportError: dlopen(/Applications/MATLAB_R2015a.app/extern/engines/python/dist/matlab/engine/maci64/matlabengineforpython3_4.so, 2): Library not loaded: @rpath/libpython3.4m.dylib
Referenced from: /Applications/MATLAB_R2015a.app/extern/engines/python/dist/matlab/engine/maci64/matlabengineforpython3_4.so
Reason: image not found
During handling of the above exception, another exception occurred:
OSError Traceback (most recent call last)
<ipython-input-1-7ec811bb5400> in <module>()
----> 1 import matlab.engine
/usr/local/lib/python3.4/site-packages/matlab/engine/__init__.py in <module>()
57 pythonengine = importlib.import_module("matlabengineforpython"+_PYTHONVERSION)
58 except:
---> 59 raise EnvironmentError('The installation of MATLAB Engine for Python is '
60 'corrupted. Please reinstall it or contact '
61 'MathWorks Technical Support for assistance.')
OSError: The installation of MATLAB Engine for Python is corrupted. Please reinstall it or contact MathWorks Technical Support for assistance.

请先登录，再回答此问题。

采纳的回答

Bo Li
Bo Li 2015-6-2
The error message "Library not loaded: @rpath/libpython3.4m.dylib" indicates that the Python library is not found. Are you able to find the file "libpython3.4m.dylib" in folder "/usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/"?
If so, you can try to set the environment variable DYLD_LIBRARY_PATH. In csh, this is the command:
setenv DYLD_LIBRARY_PATH /usr/local/Cellar/python3/3.4.3/Frameworks/Python.framework/Versions/3.4/lib/
  1 个评论
Evan
Evan 2015-8-12
This did not work for me:
>>> import os
>>> os.environ['DYLD_LIBRARY_PATH'] = '/Users/Evan/miniconda/lib/'
>>> import matlab.engine
Traceback (most recent call last):
File "/Users/Evan/miniconda/lib/python3.4/site-packages/matlab/engine/__init__.py", line 41, in <module>
pythonengine = importlib.import_module("matlabengineforpython"+_PYTHONVERSION)
File "/Users/Evan/miniconda/lib/python3.4/importlib/__init__.py", line 109, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
File "<frozen importlib._bootstrap>", line 2224, in _find_and_load_unlocked
ImportError: No module named 'matlabengineforpython3_4'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/Evan/miniconda/lib/python3.4/site-packages/matlab/engine/__init__.py", line 57, in <module>
pythonengine = importlib.import_module("matlabengineforpython"+_PYTHONVERSION)
File "/Users/Evan/miniconda/lib/python3.4/importlib/__init__.py", line 109, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
File "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 1191, in _load_unlocked
File "<frozen importlib._bootstrap>", line 1161, in _load_backward_compatible
File "<frozen importlib._bootstrap>", line 539, in _check_name_wrapper
File "<frozen importlib._bootstrap>", line 1715, in load_module
File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
ImportError: dlopen(/Applications/MATLAB_R2015a.app/extern/engines/python/dist/matlab/engine/maci64/matlabengineforpython3_4.so, 2): Library not loaded: @rpath/libpython3.4m.dylib
Referenced from: /Applications/MATLAB_R2015a.app/extern/engines/python/dist/matlab/engine/maci64/matlabengineforpython3_4.so
Reason: image not found
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/Evan/miniconda/lib/python3.4/site-packages/matlab/engine/__init__.py", line 59, in <module>
raise EnvironmentError('The installation of MATLAB Engine for Python is '
OSError: The installation of MATLAB Engine for Python is corrupted. Please reinstall it or contact MathWorks Technical Support for assistance.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Call MATLAB from Python 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by