Installing msmtools using "pip install msmtools" fails

[hexcoffee]

@cwehmeyer asked me to post this issue. I called "pip install msmtools" on my Windows machine and it didn't work. This was the error report:

----------------------------------------
  Failed building wheel for msmtools
  Running setup.py clean for msmtools
Failed to build msmtools
Installing collected packages: msmtools
  Running setup.py install for msmtools ... error
    Complete output from command C:\Users\Johannes\Anaconda3\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\Johannes\\AppData\\Local\\Temp\\pip-build-js60mrsq\\msmtools\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record C:\Users\Johannes\AppData\Local\Temp\pip-9ut94p7x-record\install-record.txt --single-version-externally-managed --compile:
    Warning: build in c:\users\johannes\appdata\local\temp\pip-build-js60mrsq\msmtools is using versioneer.py from C:\Users\Johannes\AppData\Local\Temp\pip-build-js60mrsq\msmtools\versioneer.py
    running install
    running build
    running build_py
    Warning: build in c:\users\johannes\appdata\local\temp\pip-build-js60mrsq\msmtools is using versioneer.py from C:\Users\Johannes\AppData\Local\Temp\pip-build-js60mrsq\msmtools\versioneer.py
    Warning: build in c:\users\johannes\appdata\local\temp\pip-build-js60mrsq\msmtools is using versioneer.py from C:\Users\Johannes\AppData\Local\Temp\pip-build-js60mrsq\msmtools\versioneer.py
    running build_ext
    building 'msmtools.estimation.dense.mle_trev_given_pi' extension
    error: Unable to find vcvarsall.bat

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

[marscher]

Do you have a C compiler installed?

https://stackoverflow.com/questions/101061/building-python-c-extension-modules-for-windows

I'm also curious why you are trying to compile yourself instead of using conda :)

[marscher]

https://stackoverflow.com/questions/2817869/error-unable-to-find-vcvarsall-bat This is probably a better compendium to read.

[fabian-paul]

Maybe this helps: we ran into this problem many times during the Pyemma workshop. Often the cause was that people installed anaconda python on top of an already present python installation and this confused the compiler. The solution was to remove python and start with a clean anaconda installation.

[marscher]

This message clearly indicates that Visual Studio is not set up properly.

[hexcoffee]

Yes, it worked with "conda install msmtools". I have VC++ installed. I did not have some python installed before installing anaconda python.

[marscher]

great