Installing to WinPython 3.6.0

[Robbie Urwin]

Hi,

I've been trying to install or-tools for several hours, with no success! I am trying to install to WinPython 3.6.0.1 and have been using the 'Developer Command Prompt for VS2017'.

I have tried the following actions:

1. Download the Python Zip on the installation guide and unzipped it

2. Ran Developer Command Prompt for VS2017 and cd'd to where I unzipped

3. python setup.py install

Seems to work OK, as below:

running install

running bdist_egg

running egg_info

writing ortools_examples.egg-info\PKG-INFO

writing dependency_links to ortools_examples.egg-info\dependency_links.txt

writing requirements to ortools_examples.egg-info\requires.txt

writing top-level names to ortools_examples.egg-info\top_level.txt

reading manifest file 'ortools_examples.egg-info\SOURCES.txt'

writing manifest file 'ortools_examples.egg-info\SOURCES.txt'

installing library code to build\bdist.win-amd64\egg

running install_lib

warning: install_lib: 'build\lib' does not exist -- no Python modules to install

creating build\bdist.win-amd64\egg

creating build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\PKG-INFO -> build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\SOURCES.txt -> build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\dependency_links.txt -> build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\requires.txt -> build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\top_level.txt -> build\bdist.win-amd64\egg\EGG-INFO

zip_safe flag not set; analyzing archive contents...

creating 'dist\ortools_examples-6.4.4495-py3.6.egg' and adding 'build\bdist.win-amd64\egg' to it

removing 'build\bdist.win-amd64\egg' (and everything under it)

Processing ortools_examples-6.4.4495-py3.6.egg

Copying ortools_examples-6.4.4495-py3.6.egg to c:\users\robbie\winpython-64bit-3.6.0.1qt5\python-3.6.0.amd64\lib\site-packages

Adding ortools-examples 6.4.4495 to easy-install.pth file

Installed c:\users\robbie\winpython-64bit-3.6.0.1qt5\python-3.6.0.amd64\lib\site-packages\ortools_examples-6.4.4495-py3.6.egg

Processing dependencies for ortools-examples==6.4.4495

Searching for py3-ortools==6.4.4495

Best match: py3-ortools 6.4.4495

Processing py3_ortools-6.4.4495-py3.6-win-amd64.egg

Adding py3-ortools 6.4.4495 to easy-install.pth file

Using c:\users\robbie\appdata\roaming\python\python36\site-packages\py3_ortools-6.4.4495-py3.6-win-amd64.egg

Searching for protobuf==3.2.0

Best match: protobuf 3.2.0

Processing protobuf-3.2.0-py3.6.egg

Adding protobuf 3.2.0 to easy-install.pth file

Using c:\users\robbie\appdata\roaming\python\python36\site-packages\protobuf-3.2.0-py3.6.egg

Searching for setuptools==36.5.0

Best match: setuptools 36.5.0

Adding setuptools 36.5.0 to easy-install.pth file

Installing easy_install-script.py script to C:\Users\Robbie\WinPython-64bit-3.6.0.1Qt5\python-3.6.0.amd64\Scripts

Installing easy_install.exe script to C:\Users\Robbie\WinPython-64bit-3.6.0.1Qt5\python-3.6.0.amd64\Scripts

Installing easy_install-3.6-script.py script to C:\Users\Robbie\WinPython-64bit-3.6.0.1Qt5\python-3.6.0.amd64\Scripts

Installing easy_install-3.6.exe script to C:\Users\Robbie\WinPython-64bit-3.6.0.1Qt5\python-3.6.0.amd64\Scripts

Using c:\users\robbie\winpython-64bit-3.6.0.1qt5\python-3.6.0.amd64\lib\site-packages

Searching for six==1.10.0

Best match: six 1.10.0

Adding six 1.10.0 to easy-install.pth file

Using c:\users\robbie\winpython-64bit-3.6.0.1qt5\python-3.6.0.amd64\lib\site-packages

Finished processing dependencies for ortools-examples==6.4.4495

4. Create the my_program.py example and try and run

I get the following error:

Traceback (most recent call last):

  File "C:\Users\Robbie\AppData\Roaming\Python\Python36\site-packages\py3_ortools-6.4.4495-py3.6-win-amd64.egg\ortools\linear_solver\pywraplp.py", line 14, in swig_import_helper

    return importlib.import_module(mname)

  File "C:\Users\Robbie\WinPython-64bit-3.6.0.1Qt5\python-3.6.0.amd64\Lib\importlib\__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 978, in _gcd_import

  File "<frozen importlib._bootstrap>", line 961, in _find_and_load

  File "<frozen importlib._bootstrap>", line 950, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 648, in _load_unlocked

  File "<frozen importlib._bootstrap>", line 560, in module_from_spec

  File "<frozen importlib._bootstrap_external>", line 922, in create_module

  File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed

ImportError: DLL load failed: The specified module could not be found.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "my_program.py", line 2, in <module>

    from ortools.linear_solver import pywraplp

  File "C:\Users\Robbie\AppData\Roaming\Python\Python36\site-packages\py3_ortools-6.4.4495-py3.6-win-amd64.egg\ortools\linear_solver\pywraplp.py", line 17, in <module>

    _pywraplp = swig_import_helper()

  File "C:\Users\Robbie\AppData\Roaming\Python\Python36\site-packages\py3_ortools-6.4.4495-py3.6-win-amd64.egg\ortools\linear_solver\pywraplp.py", line 16, in swig_import_helper

    return importlib.import_module('_pywraplp')

  File "C:\Users\Robbie\WinPython-64bit-3.6.0.1Qt5\python-3.6.0.amd64\Lib\importlib\__init__.py", line 126, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

ModuleNotFoundError: No module named '_pywraplp'

Any help at all much appreciated.

[Laurent Perron]

Can you try adding the dolls in the installed python modules to your path?

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[Robbie Urwin]

Thanks for the response. What do you mean by 'adding the dolls'? I've tried adding "C:\Users\Robbie\AppData\Roaming\Python\Python36\site-packages\" to my path with no success.

Also I'm confused as to why some of the eggs are put here:

c:\users\robbie\winpython-64bit-3.6.0.1qt5\python-3.6.0.amd64\lib\site-packages\ortools_examples-6.4.4495-py3.6.egg

and some are here:

c:\users\robbie\appdata\roaming\python\python36\site-packages\py3_ortools-6.4.4495-py3.6-win-amd64.egg

This seems like it might be part of the problem, I'd have thought it would install in the WinPython location rather than creating a new python36 directory in my appdata?

[Yingjue]

Just want to report that though my computer has slightly different environment, I have followed the same installation procedure and encountered the same problem, and thus closely follow this post for solutions.

I tried on two machines, one is Win7 OS 64bit and another is Win10 OS 64 bit. Both installed VS2017 and Python 3.6.2 64 bit.

I installed Python for all users and the folder is "C:\Program Files\Python36".

I unzipped the ortools_examples at "C:\Program Files\Python36\Lib\site-packages\ortools_examples".

I am new to Python and do not understand the "adding the dolls" instruction neither. Thanks!

[Laurent Perron]

dolls = dlls 

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[Robbie Urwin]

That makes more sense! As far as I can see the install isn't getting as far as installing any dll's. Any solution you can think of would be much appreciated.

Here is the output from my latest attempt to install:

----------------------------------------------------------------------------------------------------

running install

running bdist_egg

running egg_info

writing ortools_examples.egg-info\PKG-INFO

writing dependency_links to ortools_examples.egg-info\dependency_links.txt

writing requirements to ortools_examples.egg-info\requires.txt

writing top-level names to ortools_examples.egg-info\top_level.txt

reading manifest file 'ortools_examples.egg-info\SOURCES.txt'

writing manifest file 'ortools_examples.egg-info\SOURCES.txt'

installing library code to build\bdist.win-amd64\egg

running install_lib

warning: install_lib: 'build\lib' does not exist -- no Python modules to install

creating build\bdist.win-amd64\egg

creating build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\PKG-INFO -> build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\SOURCES.txt -> build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\dependency_links.txt -> build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\requires.txt -> build\bdist.win-amd64\egg\EGG-INFO

copying ortools_examples.egg-info\top_level.txt -> build\bdist.win-amd64\egg\EGG-INFO

zip_safe flag not set; analyzing archive contents...

creating 'dist\ortools_examples-6.4.4495-py3.6.egg' and adding 'build\bdist.win-amd64\egg' to it

removing 'build\bdist.win-amd64\egg' (and everything under it)

Processing ortools_examples-6.4.4495-py3.6.egg

Copying ortools_examples-6.4.4495-py3.6.egg to c:\users\robbie\appdata\roaming\python\python36\site-packages

Adding ortools-examples 6.4.4495 to easy-install.pth file

Installed c:\users\robbie\appdata\roaming\python\python36\site-packages\ortools_examples-6.4.4495-py3.6.egg

Processing dependencies for ortools-examples==6.4.4495

Searching for py3-ortools==6.4.4495

Reading https://pypi.python.org/simple/py3-ortools/

Downloading https://pypi.python.org/packages/68/c6/25977f52592a94e4c14b0bc5317d593b4d5d171371cf3515edf164af9feb/py3_ortools-6.4.4495-py3.6-win-amd64.egg#md5=0c5dfc5cacbaa3550f91200788d95d7c

Best match: py3-ortools 6.4.4495

Processing py3_ortools-6.4.4495-py3.6-win-amd64.egg

creating c:\users\robbie\appdata\roaming\python\python36\site-packages\py3_ortools-6.4.4495-py3.6-win-amd64.egg

Extracting py3_ortools-6.4.4495-py3.6-win-amd64.egg to c:\users\robbie\appdata\roaming\python\python36\site-packages

Adding py3-ortools 6.4.4495 to easy-install.pth file

Installed c:\users\robbie\appdata\roaming\python\python36\site-packages\py3_ortools-6.4.4495-py3.6-win-amd64.egg

Searching for protobuf==3.2.0

Reading https://pypi.python.org/simple/protobuf/

Downloading https://pypi.python.org/packages/e0/2f/690a5f047e2cfef40c9c5eec0877b496dc1f5a0625ca6b0ac1cd11f12f6a/protobuf-3.2.0.tar.gz#md5=f1daa5fee5de4e61e757a5f97e6aa7fd

Best match: protobuf 3.2.0

Processing protobuf-3.2.0.tar.gz

Writing C:\Users\Robbie\AppData\Local\Temp\easy_install-evm4k245\protobuf-3.2.0\setup.cfg

Running protobuf-3.2.0\setup.py -q bdist_egg --dist-dir C:\Users\Robbie\AppData\Local\Temp\easy_install-evm4k245\protobuf-3.2.0\egg-dist-tmp-g9yr3w2b

no previously-included directories found matching 'google\protobuf\internal\import_test_package'

warning: no previously-included files found matching 'google\protobuf\internal\*_pb2.py'

warning: no previously-included files found matching 'google\protobuf\internal\*_test.py'

warning: no previously-included files found matching 'google\protobuf\internal\*.proto'

warning: no previously-included files found matching 'google\protobuf\internal\test_util.py'

warning: no previously-included files matching '*_test.py' found under directory 'google'

warning: no previously-included files matching '*_test.proto' found under directory 'google'

warning: no previously-included files matching 'unittest*_pb2.py' found under directory 'google'

warning: no previously-included files matching '*.dll' found anywhere in distribution

warning: no previously-included files matching '*.pyc' found anywhere in distribution

warning: no previously-included files matching '*.pyo' found anywhere in distribution

warning: no previously-included files matching '*.so' found anywhere in distribution

zip_safe flag not set; analyzing archive contents...

google.__pycache__.__init__.cpython-36: module references __path__

google.protobuf.__pycache__.__init__.cpython-36: module references __path__

google.protobuf.pyext.__pycache__.__init__.cpython-36: module references __path__

creating c:\users\robbie\appdata\roaming\python\python36\site-packages\protobuf-3.2.0-py3.6.egg

Extracting protobuf-3.2.0-py3.6.egg to c:\users\robbie\appdata\roaming\python\python36\site-packages

Adding protobuf 3.2.0 to easy-install.pth file

Installed c:\users\robbie\appdata\roaming\python\python36\site-packages\protobuf-3.2.0-py3.6.egg

Searching for setuptools==36.5.0

Best match: setuptools 36.5.0

Adding setuptools 36.5.0 to easy-install.pth file

Installing easy_install-script.py script to C:\Users\Robbie\AppData\Roaming\Python\Python36\Scripts

Installing easy_install.exe script to C:\Users\Robbie\AppData\Roaming\Python\Python36\Scripts

Installing easy_install-3.6-script.py script to C:\Users\Robbie\AppData\Roaming\Python\Python36\Scripts

Installing easy_install-3.6.exe script to C:\Users\Robbie\AppData\Roaming\Python\Python36\Scripts

Using c:\users\robbie\winpython-64bit-3.6.0.1qt5\python-3.6.0.amd64\lib\site-packages

Searching for six==1.10.0

Best match: six 1.10.0

Adding six 1.10.0 to easy-install.pth file

Using c:\users\robbie\winpython-64bit-3.6.0.1qt5\python-3.6.0.amd64\lib\site-packages

Finished processing dependencies for ortools-examples==6.4.4495

[ERROR] You are using py3-ortools-(OR_TOOLS_VERSION) : C:\Users\Robbie\AppData\Roaming\Python\Python36\site-packages\py3_ortools-6.4.4495-py3.6-win-amd64.egg\ortools\__init__.py, while the required version is : 6.4.4495

Run "C:\Users\Robbie\WinPython-64bit-3.6.0.1Qt5\python-3.6.0.amd64\python.exe setup.py install --user" to upgrade.

If the problem persists, remove the site-package that contains "C:\Users\Robbie\AppData\Roaming\Python\Python36\site-packages\py3_ortools-6.4.4495-py3.6-win-amd64.egg\ortools\__init__.py". You can do so either manually or by using pip.

-----------------------------------------------------------------------------------------------

[Yingjue]

Update:

I uninstalled the whole python, then started from scratch and pip installed the last stable version of ortools (6.3.4431).

python -m pip install py3-ortools==6.3.4431

Now it seems working fine on my machine.

[Laurent Perron]

This is not the last version. And I did not change the build process on Windows between the 6.3 and 6.4 release :-)

--

[Yingjue]

Yes you are right. I mean "the PREVIOUS stable version of ortools (6.3.4431)". Sorry I am so happy at that moment and did not use the accurate wording ^_^

Many thanks for this great tool, Laurent!

[Laurent Perron]

So, python 2.7 modules work fine on my machine.

I can reproduce the problem with python 3.6.

I continue my debug session.

Laurent Perron | Operations Research | lpe...@google.com | (33) 1 42 68 53 00

To unsubscribe from this group and stop receiving emails from it, send an email to or-tools-discuss+unsubscribe@googlegroups.com.

[Laurent Perron]

It seems dlls were mixed up, and the python 3.6 modules is linked against a 3.5 python.

Can you try with python 3.5?

Thanks

[Laurent Perron]

OK, 

I have managed to build everything correctly.

Hopefully, next release will include all the fixes

What a mess :-(

Laurent Perron | Operations Research | lpe...@google.com | (33) 1 42 68 53 00

2017-10-02 13:32 GMT+02:00 Laurent Perron <laurent...@gmail.com>:

It seems dlls were mixed up, and the python 3.6 modules is linked against a 3.5 python.

Can you try with python 3.5?

Thanks

Le lun. 2 oct. 2017 à 12:58, 'Laurent Perron' via or-tools-discuss <or-tools-discuss@googlegroups.com> a écrit :

So, python 2.7 modules work fine on my machine.

I can reproduce the problem with python 3.6.

I continue my debug session.

Laurent Perron | Operations Research | lpe...@google.com | (33) 1 42 68 53 00

2017-09-30 21:26 GMT+02:00 Yingjue <zhouy...@gmail.com>:

Yes you are right. I mean "the PREVIOUS stable version of ortools (6.3.4431)". Sorry I am so happy at that moment and did not use the accurate wording ^_^

Many thanks for this great tool, Laurent!

On Saturday, September 30, 2017 at 12:19:03 PM UTC-7, Laurent Perron wrote:

This is not the last version. And I did not change the build process on Windows between the 6.3 and 6.4 release :-)

Le sam. 30 sept. 2017 à 21:16, Yingjue <zhouy...@gmail.com> a écrit :

Update:

I uninstalled the whole python, then started from scratch and pip installed the last stable version of ortools (6.3.4431).

python -m pip install py3-ortools==6.3.4431

Now it seems working fine on my machine.

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[Robbie Urwin]

I have now successfully installed the package! I tried your advice Laurent to install to Python 3.5 instead but unfortunately that didn't work either. However I took Yingjue's advice and pip installed 6.3.4431 and that worked fine.

Thanks for your help Laurent, really appreciated.Hope you can sort these issues for the next release!

[Laurent Perron]

Next release is out.

If you run pip install ortools (not py3-ortools), you should pull the latest module (for python 3.6).

Tell me if it works.

--Laurent

PS: Uninstall py3-ortools before.

Laurent Perron | Operations Research | lpe...@google.com | (33) 1 42 68 53 00

2017-10-02 22:44 GMT+02:00 Robbie Urwin <robbie...@hotmail.co.uk>:

I have now successfully installed the package! I tried your advice Laurent to install to Python 3.5 instead but unfortunately that didn't work either. However I took Yingjue's advice and pip installed 6.3.4431 and that worked fine.

Thanks for your help Laurent, really appreciated.Hope you can sort these issues for the next release!

--

[Robbie Urwin]

Updating with pip worked fine. I now have ortools 6.5.4527 installed and working with Python 3.6. Thanks!

[Laurent Perron]

Great.

Thanks

Laurent Perron | Operations Research | lpe...@google.com | (33) 1 42 68 53 00

2017-10-03 20:35 GMT+02:00 Robbie Urwin <robbie...@hotmail.co.uk>:

Updating with pip worked fine. I now have ortools 6.5.4527 installed and working with Python 3.6. Thanks!

--