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Ross
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Corrupted installation of MATLAB Engine for Python

Asked by Ross
on 31 Mar 2015
Latest activity Commented on by haojing
on 17 Feb 2016
I'm trying to install the MATLAB Engine for Python on Windows 7.
When I run "python setup.py install" in the python engine directory the engine seems to build and install fine. But, when I try to import matlab.engine in Python I receive this error:
"EnvironmentError: The installation of MATLAB Engine for Python is corrupted. Please reinstall it or contact MathWorks technical Support for assistance."
I have tried reinstalling the engine to no avail. I'm using 64-bit MATLAB and 64-bit Python. Has anyone had a similar issue?

  1 Comment

Hi Ross, Have you solved this problem? I am encountering exactly the same problem and I couldn't find a way to solve it.
The matlab engine used to work correctly but after I did a os upgrade it started to report such error. I've tried to reinstall the matlab engine but got no luck...

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4 Answers

Answer by Bo Li
on 31 Mar 2015

Would you try the verbose mode of Python?
C:\>python -vvv
>>>import matlab.engine
The output may have some useful info.

  1 Comment

Unfortunately that didn't yield anything fruitful:
...
# trying C:\Anaconda\lib\site-packages\Pythonwin\matlabengineforpython2_7.pyw
# trying C:\Anaconda\lib\site-packages\Pythonwin\matlabengineforpython2_7.pyc
# trying C:\Anaconda\lib\site-packages\matlab\matlabengineforpython2_7.pyd
# trying C:\Anaconda\lib\site-packages\matlab\matlabengineforpython2_7.py
# trying C:\Anaconda\lib\site-packages\matlab\matlabengineforpython2_7.pyw
# trying C:\Anaconda\lib\site-packages\matlab\matlabengineforpython2_7.pyc
# trying C:\Program Files\MATLAB\R2014b\extern\engines\python\dist\matlab\engine\win64\matlabengineforpython2_7.pyd
# clear[1] _module_folder
# clear[1] _ver27
# clear[1] _ver
# clear[1] _envs
# clear[1] _env
# clear[1] _arch_filename
# clear[1] _arch_file
# clear[1] _arch
# clear[1] _PYTHONVERSION
# clear[1] _ver33
# clear[1] _engine_dir
# clear[1] _lines
# clear[1] _bin_dir
# clear[2] atexit
# clear[2] importlib
# clear[2] __package__
# clear[2] __doc__
# clear[2] __file__
# clear[2] sys
# clear[2] __name__
# clear[2] __path__
# clear[2] x
# clear[2] os
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Anaconda\lib\site-packages\matlab\engine\__init__.py", line 61, in <module>
raise EnvironmentError('The installation of MATLAB Engine for Python is '
EnvironmentError: The installation of MATLAB Engine for Python is corrupted. Please reinstall it or contact MathWorks Technical Support for assistance.

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Answer by Bo Li
on 31 Mar 2015

Which version of CPython are you using? Would you try both CPython 2.7 and CPython 3.3 to see how they work?

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Answer by Ross
on 31 Mar 2015

I'm using Python 2.7 - I'd rather not go to 3.3 as I have some other Python dependencies that require 2.7.

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Answer by Dave Bergstein on 1 Apr 2015

This particular build of Python is not compatible with the MATLAB Engine for Python, which was developed for the reference Python implementation. Consider using one of the versions of Python described at the link below (including Python 2.7).
The link also includes requirements for building Python from source.

  1 Comment

Which particular build are you referring to? Anaconda is just a package distribution; it uses CPython so I'm using reference Python 2.7.8....are you suggesting a different Python implementation or a different version?
I can try installing Python manually, but on Windows that's not the optimal way to go - Python package management in Windows is a pain.

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