How to install PyGrib inside our CDAT path

Dear All,

Greetings.!.

Now we are going to see the procedure to install PyGrib [1] inside the CDAT [2] installed path in our system.

[1] http://code.google.com/p/pygrib/
[2] http://www2-pcmdi.llnl.gov/cdat

Let us assume we have installed CDAT in our system and its working path is /usr/local/cdat5.2/bin/ .

Make sure that the path working fine as like below….

$ /usr/local/cdat5.2//bin/python
Executing /usr/local/cdat5.2//bin/python
Python 2.5.2 (r252:60911, Feb 2 2011, 15:29:23)
[GCC 4.4.5] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.
>>>

To install PyGrib in your normal python path, kindly follow the link

First Install the following dependencies for pygrib in our ubuntu.

$ sudo apt-get install libjasper-dev libjasper-runtime .

Note : Do Not install libjasper-java, jasper and openjpeg-tools.

If you installed these above 3 packages, then it should crash our ubuntu login and its X.

These are all stuff tested in ubuntu 10.10.

libjasper-dev and libjasper-runtime are working fine without making any problem.

Download grib_api-1.9.5.tar.gz from http://www.ecmwf.int/products/data/software/download/grib_api.html

Download pyproj-1.8.8.tar.gz from http://code.google.com/p/pyproj/downloads/list

Download pygrib-1.8.0.tar.gz from http://code.google.com/p/pygrib/downloads/list

Now we need to move the three downloaded packages to the cdat path as like below …

$ mv grib_api-1.9.5.tar.gz /usr/local/cdat5.2/bin/

$ mv pyproj-1.8.8.tar.gz /usr/local/cdat5.2/bin/

$ mv pygrib-1.8.0.tar.gz /usr/local/cdat5.2/bin/

Now change the current working directory into cdat .

$ cd /usr/local/cdat5.2/bin/

$ pwd
/usr/local/cdat5.2/bin/

$ su – root

installing grib-api

Following these instructions should be safe on an average linux machine:

• mkdir grib_api_dir
• tar zxvf grib_api-1.9.5.tar.gz
• cd grib_api-1.9.5
• export CFLAGS=”-O2 -fPIC”
• ./configure –prefix= `pwd`/../grib_api_dir
• make
• make check
• make install
• cd ..
• pwd
  /usr/local/cdat5.2/bin/

installing pyproj

This one is very simple, just like the normal python install :

• tar zxvf pyproj-1.8.8.tar.gz
• cd pyproj-1.8.8
• /usr/local/cdat5.2/bin//python setup.py install
• cd ..
• pwd
  /usr/local/cdat5.2/bin/

installing pygrib

Installing pygrib inside cdat path.

• export GRIBAPI_DIR=`pwd`/grib_api_dir
• export JASPER_DIR=/usr
• tar zxvf pygrib-1.8.0.tar.gz
• cd pygrib-1.8.0
• /usr/local/cdat5.2/bin//python setup.py install
• /usr/local/cdat5.2/bin//python test.py
• pwd
  /usr/local/cdat5.2/bin/pygrib

checking pygrib

open a new terminal as a normal user

• $ /usr/local/cdat5.2//bin/pythonExecuting /usr/local/cdat5.2//bin/python
  Python 2.5.2 (r252:60911, Feb 2 2011, 15:29:23)
  [GCC 4.4.5] on linux2
  Type “help”, “copyright”, “credits” or “license” for more information.
  >>> import pygrib
  >>>
  

  Thats it. We have successfully installed pygrib in our cdat path and imported it.

  Enjoy !

  Arulalan.T