Or-tools: No module named 'ortools'

[uioplmn]

I am very new to Python an OR-Tools, so please excuse the simplicity of my question.
I installed OR-Tools by executing ortools-6.7.4973.win-amd64-py3.6.exe on my 64-bit, Win10 machine.
When I try to execute from ortools.constraint_solver import pywrapcp in the command prompt of Spyder, I get the error No module named 'ortools'.
What am I doing wrong? Thanks in advance!

[lperron]

Most likely, you need to install visual studio 2017 redistributables c++
libraries.

https://aka.ms/vs/15/release/VC_redist.x64.exe

Please also make sure the python you are using is 64 bit.

Can you try?
Laurent Perron | Operations Research | [email protected] | (33) 1 42 68 53
00

Le mer. 27 juin 2018 à 10:35, uioplmn [e-mail] a écrit :

I am very new to Python an OR-Tools, so please excuse the simplicity of my
question.
I installed OR-Tools by executing ortools-6.7.4973.win-amd64-py3.6.exe on
my 64-bit, Win10 machine.
When I try to execute from ortools.constraint_solver import pywrapcp in
the command prompt of Spyder, I get the error No module named 'ortools'.
What am I doing wrong? Thanks in advance!

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[Mizux]

Check your python with:

python --version
python -c "import platform; print(platform.architecture()[0])"
python -m pip --version

note: pip should be installed with python if you have used the official python.org installer
note: I assume you have added python.exe to your PATH.

You should also install ortools using:

python -m pip install -U --user ortools

and check installation using

python -m pip show ortools

ps: you have installed ortools for python3.6 be sure to use the same python interpreter or use the install method above....
pps: Are you sure Spyder use python3.6 ?

[uioplmn]

Checking python -c "import platform; print(platform.architecture()[0])" showed that I had, indeed, a 32-bit version installed. Installing the 64-bit version and re-installing ortools using python -m pip install -U --user ortools did the trick. Many thanks to both of you, @lperron and @Mizux!

[justinwkUKM]

I had the same issue. Like @Iperron mentioned it is usually caused due to missing Microsoft Visual Studio 20** redistributables c++.
This is how I solved it.

1. Got the latest Microsoft Visual Studio 20** redistributables c++ from https://support.microsoft.com/en-my/help/2977003/the-latest-supported-visual-c-downloads
2. Installed it and Restarted the computer.
3. Uninstall the ortools 'python -m pip uninstall ortools'
4. Install back the ortools 'python -m pip install --user ortools'
5. Validated installation with python -c "from ortools.linear_solver import pywraplp"

[Mizux]

I'll try to add the Redistributable in the installation doc (#1872)