Installing pygrib Package

Question

Apologies in advance for what is probably a bad/poorly phrased question, but I merely dabble in programming and am very unfamiliar with under the hood aspects of package installation, etc.

Basically, I am trying to install the pygrib package (available here: https://github.com/jswhit/pygrib) via a cygwin terminal.

I am running Python 2.7.3 32-bit on Windows 10.

Originally I encountered the missing vcvarsall.bat error the first time I tried to run 'python seteup.py build' and followed the advice here: error: Unable to find vcvarsall.bat

After installing the MS Visual Studio package, I have made it past that error and to another I do not understand with the following output:

$ python setup.py build
reading from setup.cfg...running build
running build_py
running build_ext
skipping 'pygrib.c' Cython extension (up-to-date)
building 'pygrib' extension

C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -IC:\Users\Matthew\Anaconda2\lib\site-packages\numpy\core\include -I/usr/local\include -I/usr/local\include -I/usr/local\include/jasper -I/usr/local\include -I/usr\include -I/usr\include -Ig2clib_src -IC:\Users\Matthew\Anaconda2\include -IC:\Users\Matthew\Anaconda2\PC /Tcpygrib.c /Fobuild\temp.win32-2.7\Release\pygrib.obj
pygrib.c
c:\users\matthew\anaconda2\lib\site-packages\numpy\core\include\numpy\npy_1_7_deprecated_api.h(12) : Warning Msg: Using deprecated NumPy API, disable it by #defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
pygrib.c(242) : fatal error C1083: Cannot open include file: 'grib_api.h': No such file or directory
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 9.0\\VC\\BIN\\cl.exe' failed with exit status 2

Obviously it's still looking for some other files, or needs other environment variables defined, but I'm at a loss as to how to proceed and I'm far from an expert when it comes to any of this.

I'd also be glad to try something completely different if you have a better way to go about this process entirely.

I have tried pip and the conda installer, but have not had any luck with them either.

Thank you in advance for anything you can offer.

Answer 1

Better to use linux on virtual machine within Windows ten. Then you can install pygrib without pain. As you are trying to play with meteorological data, it is recommended to install Linux and it will help you at may places. There is even Anaconda has a package (only for Linux and Mac). You can install using:-

conda install -c conda-forge pygrib=2.0.1

For your specif case following link might be useful:-

https://github.com/jswhit/pygrib/issues/19

https://github.com/jswhit/pygrib/pull/18 and https://github.com/conda-forge/ecmwf_grib-feedstock/issues/5

Gud luck.