Python Links

Core

• www.python.org
• The Python Tutorial
• How to Think Like a (Python) Programmer
• Dive Into Python
• Useful simple examples from the Python Standard Library
  • commands, glob, math, os, random, shutil, stat, sys time
• String documentation
• Google's Python Class
• MIT Introduction to Computer Science and Programming

General Scientific Programming

• scipy (docs)
• numpy ( Numpy reference)
• Summary of NumPy Commands
• Arrays in SciPy/Numpy/Python (attributes, methods, functions)
• mpmath Python library for arbitrary-precision floating-point arithmetic
• Minuit numerical function minimization in Python
• Physical constants in python
• Python Imaging Library (PIL)
• RPy - R from Python

Calling c functions and fortran subroutines

• SWIG

Plotting

• Matplotlib

Pgplot and ppgplot

• pgplot
• Subroutine Descriptions
• pgplot colours, symbols, line types
• ppgplot
• pgplot, ppgplot and gfortran
• Using ppgplot on Durham ITS, first star.init, then try the demo programmes
  jor_comp.py, (data file)
  ex_graph.py
  ex_arro.py
  ex_panel.py
  ex_cont.py
  ex_sierp.py
  

Astronomy

• pyfits
• Topical Software
• pyraf
• PyEphem
• Python version of Ned Wright's Cosmology Calculator by James Schombert.

Example Python Programs and Functions

• Find the median of an array (source)
• Angular separation of two points on the Celestial Sphere (source)
• Bearing (position angle) of one point on a sphere relative to another (source)
• To the azimuth and elevation of celestial object (source)
• Convert from J2000 equatorial coordinates to galactic coordinates (source)
• To find aperture magitudes for a set of x, y position on an image (source)
• Incomplete Gamma functions, etc (gammln, gser, gcf, gammp, gammq translated from Numerical Recipes) (source)
• plot_prof.py  Plots galaxy surface brightness curves, outputs: prof.ps
  
• plot_petro.py  Plots petrosian functions for a range of sersic profiles, outputs: petro.ps
  
• make_galfit_gal.py Create bulge and disk images from GALFIT output fit.log file
• Average a set of JPEGS with PIL and numpy (source)
• Convert the SDSS photo flag hex number into the flag names (source, PhotoFlags.dat)
• Make up 2d gaussian fits image (source).
• Example of using scipy.signal.convolve2d (source). Input fits files (gal.fits, psf.fits).
• How to use the signal timeout (source).
• Using astLibs to make up a postage stamp image (source)
• Examples of file locking in GCC and python

Back to the AstroLab Home Page

jrl

2020-Jun-17 12:48:17 UTC