Differences between revisions 5 and 35 (spanning 30 versions)

LES python seminar series (Thursday, 10:30 - 12:00, Geomatikum, 1729)

contact: Alex Loew, Julia Pongratz

Contents

LES python seminar series (Thursday, 10:30 - 12:00, Geomatikum, 1729)
1. What you should be able to do in advance
Seminar outline

What you should be able to do in advance

python programming structures
if clauses
function calling
print statements
well, running python scripts (in python shell and interactive shell like ipython)
edit python scripts in the editor of your choice
...

Seminar outline

Part 1

Working with arrays (Gernot, Michael) (19.07.2012)

Commented examples from the seminar
general information on python data model (copy, references, deepcopy)
map and lambda functions
numpy arrays (indexing, slicing, views ...)
array functions (mean, sum etc. along axes)
- data type conversions
- elementwise functions
- linear algebra
- array statistics
masked arrays
reading ASCII files etc.
- numpy input and output
- general input and output (opening a file and working with a file)
pickle, cPickle

Plotting (1D,2D,3D) (Alex) (2.8.2012)

Course material for plotting

* subplots, figure, axis objects; easy and more sophisticated appraoches

always use figure/ax
a brief tour through matplotlib gallery
- lineplots
- fill_between
- contour plots
nice colorbars, colormaps handling etc.
working with different axes in a single plot; twinx()
saving figures
- fitting to actual content
tight_layout

Geospatial data format handling and vizualization (Mikhail) (16.08.2012)

Lesson code examples

PyNio - handling netCDF
- read netCDF
- write netCDF
  - data type conversion
    - how to write a numpy array (double) in a float netcdf variable?
    - how to store data as scaled integers?
GDAL: the door to a huge number of different file formats. GDAL (Python) API tutorial
Basemap
PyNGL Tutorial

system operations (Michael) (30.8.2012)

Commented examples from the seminar

replacing BASH: working with os and system objects
os.system, subprocess etc.
python as a replacement for bash
how to debug a python program?

Structuring a program (Mikhail) (13.9.2012)

Commented program from the seminar

general structure of python scripts
writing python functions, what are the keyworded and the non-keyworded arguments
writing modules and classes, why and how to create custom objects
naming convention
how to parse command line input for options and arguments

Part 2

pyCMBS (Alex) (31.10. as part of the Wednsday seminar)

introduction to pyCMBS
cdo interfacing
anomaly calculations, hovmoeller plots etc ...
EOF, SVD analysis

time series analysis: the Pandas module (Mikhail) (25.10.)

introduction to pandas timeseries analysis module

parallel programming (Heinrich Widmann ???) (08.11.)

openMP, MPI, subprocesses, threads

Integration of other programming languages (Alex, 22.11.)

R
f2py
C-code
matlab
http://wiki.python.org/moin/IntegratingPythonWithOtherLanguages

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-= LES python seminar series (Thursday, 10:30 - 12:00) =
+= LES python seminar series (Thursday, 10:30 - 12:00, Geomatikum, 1729) =
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+Line 17:
-== Seminar outline ==
+= Seminar outline =

== Part 1 ==
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- * general information on [[http://docs.python.org/reference/datamodel.html|python data model]] (copy, references, deepcopy)
+ . [[PythonCourse/PythonLES/SeminarLog1|Commented examples from the seminar]]

 * general information on [[http://docs.python.org/reference/datamodel.html|python data model]] ([[http://docs.python.org/library/copy.html|copy, references, deepcopy]])
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+Line 28:
+  * data type conversions
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+Line 39:
- * subplots, figure, axis objects; easy and more sophisticated appraoches
+[[PythonCourse/PythonLES/SeminarLog2|Course material for plotting]]

* subplots, figure, axis objects; easy and more sophisticated appraoches
-Line 38:
+Line 44:
- * a brief tour through matplotlib gallery
+ * a brief tour through [[http://matplotlib.sourceforge.net/gallery.html|matplotlib gallery]]
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+Line 46:
-  * fill between
+  * fill_between
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+Line 49:
+ * working with different axes in a single plot; twinx()
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+Line 52:
+ * [[http://matplotlib.sourceforge.net/users/tight_layout_guide.html|tight_layout]]
-Line 46:
+Line 54:
-=== Geospatial data format handling and vizualization (Mikhail) (09.08.2012) ===
 * Nio - handling netCDF
+=== Geospatial data format handling and vizualization (Mikhail) (16.08.2012) ===
[[IoBasemapNgl|Lesson code examples]]

 * [[http://www.pyngl.ucar.edu/Nio.shtml|PyNio]] - handling netCDF
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+Line 60:
- * GDAL: the door to all available data formats ?
 * Basemap
 * pyNGL
+   * data type conversion
    * how to write a numpy array (double) in a float netcdf variable?
    * how to store data as scaled integers?
 * [[http://www.gdal.org/|GDAL]]: the door to a huge number of different file formats. [[http://www.gdal.org/gdal_tutorial.html|GDAL (Python) API tutorial]]
 * [[http://matplotlib.github.com/basemap/|Basemap]]
 * [[http://www.pyngl.ucar.edu/|PyNGL]] [[http://www.pyngl.ucar.edu/Tutorial/|Tutorial]]
-Line 55:
+Line 68:
- * replacing BASH: working with os adn system objects
+[[PythonCourse/PythonLES/SeminarLog4|Commented examples from the seminar]]

 * replacing BASH: working with os and system objects
-Line 60:
+Line 75:
-=== structuring a program (Mikhail) (13.9.2012)  ===
 * python functions with optional and kwargs
 * python object oriented programming (classes etc)
+=== Structuring a program (Mikhail) (13.9.2012) ===
[[/SeminarLog5|Commented program from the seminar ]]
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+Line 78:
-----
+ * general structure of python scripts
 * writing python functions, what are the keyworded and the non-keyworded  arguments
 * writing modules and classes, why and how to create custom objects
 * naming convention
 * how to parse command line input for options and arguments
-Line 66:
+Line 84:
-=== time series analysis: the Pandas module (Mikhail) ===
+== Part 2 ==

=== pyCMBS (Alex) (31.10. as part of the Wednsday seminar) ===
 * introduction to pyCMBS
 * cdo interfacing
 * anomaly calculations, hovmoeller plots etc ...
 * EOF, SVD analysis

=== time series analysis: the Pandas module (Mikhail) (25.10.) ===
-Line 69:
+Line 96:
+=== parallel programming (Heinrich Widmann ???) (08.11.) ===
 * openMP, MPI, subprocesses, threads
-Line 70:
+Line 99:
-=== pyCMBS (Alex) (???? on a separate day BEFORE the summer break ???) ===
 * introduction to pyCMBS
 * cdo interfacing
 * anomaly calculations, hovmoeller plots etc


=== Integration of other programming languages ===
+=== Integration of other programming languages (Alex, 22.11.) ===
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+Line 104:
+ * http://wiki.python.org/moin/IntegratingPythonWithOtherLanguages
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+Line 106:
+----
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+Line 108:
-=== scientific data analysis in python ===
 * EOF, SVD analysis

=== running JSBACH offline in a python environment (Gernot) ===

=== parallel programming (Heinrich Widmann) ===
 * openMP, MPI, subprocesses, threads

=== statistics in python (???) ===
 * statistical analysis of large data sets 

=== other topics ===
+== other topics ==
 * statistical analysis of large data sets
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+Line 111:
- * GUI programming
+ * GUI programming (Alex, remon???)
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+Line 114:
-= projects to work on ... =
 * MPI-ESM in python (Christian) ;-)