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== Lectures == This page shall be a central help for ZMAW/KlimaCampus users of Python. Contact LarsKaleschke for permission to edit this page. Please help to fill this page with useful information about Python for climate research and data analysis.
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 * [[http://wiki.zmaw.de/lehre/OpenSource2010|Open Source Scripting for Geo-Scientific Data Processing and Analysis]] by LarsKaleschke
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== Documentation == <<TableOfContents(2)>>
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 * http://www.python.org/doc/
 * [[http://www.cfa.harvard.edu/~jbattat/computer/python/science/idl-numpy.html|NumPy for IDL users]]
 * [[http://www.scipy.org/NumPy_for_Matlab_Users|NumPy for Matlab users]]
 * [[http://www.tau.ac.il/~kineret/amit/scipy_tutorial/|SciPy tutorial]]
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== Modules for Scientific Computing and Visualization == == ZMAW Settings ==
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=== SciPy/NumPy ===
 * http://www.scipy.org/

=== pylab ===
 * [[http://matplotlib.sourceforge.net/|Matplotlib/pylab]] Plotting functions with a high degree of Matlab compatibility
 * [[http://matplotlib.sourceforge.net/basemap/doc/html/]] Matplotlib Basemap

To enable Basemap (on ZMAW Linux ia32/x64 and solaris10) you have to type before starting Python2.4.4:
{{{
module load Python/2.4.4
}}}
or to start Python2.6.2 (recommended):		 Python2.6.2 requires
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In Python you can import the Basemap module by [[/ZMAW|ZMAW specific environments]]

== Documentation and further reading ==

 * http://www.python.org/doc/ Standard documentation
 * [[http://www.cfa.harvard.edu/~jbattat/computer/python/science/idl-numpy.html|NumPy for IDL users]]
 * [[http://www.scipy.org/NumPy_for_Matlab_Users|NumPy for Matlab users]]
 * [[http://www.tau.ac.il/~kineret/amit/scipy_tutorial/|SciPy tutorial]]
 * [[http://software-carpentry.org/|Software Carpentry]]
 * [[http://wiki.zmaw.de/lehre/OpenSource2010|Open Source Scripting for Geo-Scientific Data Processing and Analysis]] by LarsKaleschke '''KlimaCampus Lecture'''


== Modules for Scientific Computing and Visualization ==

=== SciPy/NumPy ===

 * http://www.scipy.org/

=== pylab ===

 * [[http://matplotlib.sourceforge.net/|Matplotlib/pylab]] Plotting functions with a high degree of Matlab compatibility
 * [[http://matplotlib.sourceforge.net/basemap/doc/html/]] Matplotlib Basemap

Import the Basemap module
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To enable GDAL use
{{{
module load gdal
}}}

{{{
from osgeo import gdal
}}}
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Calling Fortran code from python is easy! Create a file {{{hello.f}}}:
{{{
C File hello.f
      subroutine foo (a)
      integer a
      print*, "Hello from Fortran!"
      print*, "a=",a
      end
}}}		 Calling Fortran code from python is easy!
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Run
{{{f2py -c -m hello hello.f}}}

Now in IPython try:
{{{
In [1]: import hello
In [2]: hello.foo(4)
 Hello from Fortran!
 a= 4
}}}

Example taken from

 * [[http://cens.ioc.ee/projects/f2py2e/|F2PY: Fortran to Python interface generator]]		 [[/F2PY|Fortran to Python]]
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== Python and Climate ==
 
 * [[http://geosci.uchicago.edu/~rtp1/ClimateBook/ClimateBook.html|Principles of Planetary Climate (RAYMOND T. PIERREHUMBERT)]]
 * [[http://maths.ucd.ie/~rca/climt/|CliMT: An object-oriented Climate Modeling and diagnostics Toolkit]]
 * [[http://www2-pcmdi.llnl.gov/cdat|Climate Data Analysis Tools (CDAT)]]
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=== Installation in the home directory ===
The seawater module is installed on the ZMAW machines for Python 2.6. Use
{{{
module load Python/2.6.2
}}}
to set up the environment. In the following it is explained how to install the module for the case if it would be not available or if a different version of python has to be used.

Installation of module {{{seawater}}} in directory {{{~/modules}}}
{{{
python setup.py install --prefix=~/modules/
}}}

Usage
{{{
import sys,os
home=os.getenv('HOME')
genpath=home+'/modules/lib/python2.4/site-packages/'
if not sys.path.__contains__(genpath):
    sys.path.append(genpath)
from seawater import *
}}}

== Download ==		 == Download (try this at home) ==

Python at KlimaCampus

This page shall be a central help for ZMAW/KlimaCampus users of Python. Contact LarsKaleschke for permission to edit this page. Please help to fill this page with useful information about Python for climate research and data analysis.

Contents

  1. Python at KlimaCampus
    1. ZMAW Settings
    2. Documentation and further reading
    3. Modules for Scientific Computing and Visualization
    4. Topical Modules
    5. Python and Climate
    6. Download (try this at home)

ZMAW Settings

Python2.6.2 requires 

module load R/2.7.0
module load Python/2.6.2

ZMAW specific environments

Documentation and further reading

Modules for Scientific Computing and Visualization

SciPy/NumPy

pylab

Import the Basemap module 

from mpl_toolkits.basemap import Basemap

GDAL

PyNGL PyNio

To enable PyNGL (on ZMAW Linux ia32/x64 and solaris10) you have to type 

module load PyNGL/1.2.0

Please note, that Nio should be on the top of the list, e.g. 

import Nio
from osgeo import gdal
import pylab as pl

Python Interface to GrADS

RPy

F2PY: Fortran to Python interface generator

Calling Fortran code from python is easy!

Fortran to Python

Topical Modules

More topical software can be found at http://scipy.org/Topical_Software

Python and Climate

Download (try this at home)

A basic system for scientific computing consists of Python, ipython, numpy/scipy, pylab, and an editor of your choice

The python(x,y) distribution contains all that above.

IfmWiki: FrontPage/Python (last edited 2010-10-25 08:44:17 by LarsKaleschke)