error found while installing cython on windows.

[Pedro Marcal]

Hi ,

Found the following problem,

Downloaded Cython-0.1.5.1.zip and installed on Windows 7 on Python26.

Got the following sequence during setup.py install

building 'Cython.Plex.Scanners' extension

error : Unable to find vcvarsall.bat

Thanks for any help.

Pedro

[mark florisson]

I'm not a windows user, but do you have a C compiler installed (e.g. MSVC)?

[Pedro Marcal]

Hi mark,

 I did not but I do now and  am getting the same result.

I suspect that I need more information than a plain 

' python setup.py install'

I need to tell it what compiler to use ?

Pedro

[mark florisson]

I believe distutils will try MSVC by default. If you have that
installed, you should confirm that it's in your path so distutils can
find it.

[Pedro Marcal]

Hi Mark,

I had paths both to my MSVC 10 and then to MSVC Express (because Cython had to be compatible with Python26).

Both compilers are on paths in the environmental variables. Yet it does not work on all two of my machines.

Can you please point me to how to dig deeper into install and disutil? 

Thanks

Pedro

[mark florisson]

As mentioned, I don't use windows as I've always found it a terrible
platform for development (as well as most other things). This link
http://www.gossamer-threads.com/lists/python/bugs/751115 mentions that
you will need MSVC 2008, so I think you will want to remove version 10
from your path. There's also this link
http://stackoverflow.com/questions/2817869/error-unable-to-find-vcvarsall-bat
which explains how to use mingw instead.

Good luck!

[Chris.Barker]

On 12/5/11 1:26 PM, mark florisson wrote:
> As mentioned, I don't use windows as I've always found it a terrible
> platform for development (as well as most other things). This link
> http://www.gossamer-threads.com/lists/python/bugs/751115 mentions that
> you will need MSVC 2008, so I think you will want to remove version 10
> from your path.

FWIW, I've never had trouble with Python2.6 and 2.7, if I install VS2008
Express -- I haven't had to do anything else.

MS does make it tricky to find an older VSExpress, but if you poke
around, hopefully, you can find it.

-Chris

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