= Python =

[[Mercurial]]

== Parallelität mit joblib ==

{{{#!highlight python
from joblib import Parallel, delayed

Parallel(n_jobs=-1)(delayed(plot_all)(cg) for cg in cluster_groups)

}}}

== Liste von Dictionaries ==
{{{#!highlight python
d = []
d.append({})
d[0].setdefault(bsl[0].split()[0],[])
}}}

== Integer mit führender Null ==

{{{#!highlight python
"%(a)02d" % {"a":1}
}}}

== Beautify log y-axis ==
{{{#!highlight python

from matplotlib.ticker import FormatStrFormatter
...
ax1.yaxis.set_major_formatter(FormatStrFormatter('%0.0f'))


}}}
== Reading GRIB ==
{{{#!highlight python
gribs = pygrib.open('./forecast/GRIDHSTTESTA01+0000')

for grib in gribs:
    print grib

grib = gribs.select(name='Temperature')[0] # or grib = gribs.message(1)

lats, lons = grib.latlons()


}}}
== Websites ==
http://www.johnloomis.org/python/

http://learnpython.pbworks.com/w/page/15956556/WebApplication

http://www.astro.cornell.edu/staff/loredo/statpy/

http://mercurial.selenic.com/wiki/CGIinstall

== CGIHTTPServer ==

{{{#!highlight sh
python -m CGIHTTPServer
}}}

{{{#!highlight python
import CGIHTTPServer

import BaseHTTPServer

class Handler(CGIHTTPServer.CGIHTTPRequestHandler):

    cgi_directories = ["/cgi-bin"]

PORT = 8000

httpd = BaseHTTPServer.HTTPServer(("", PORT), Handler)

print "serving at port", PORT

httpd.serve_forever()

}}}

== Encoding ==

{{{
#!/usr/bin/env python
# -*- coding: utf-8 -*-
}}}

== Plotting ==

{{{#!highlight python
import matplotlib.pyplot as plt
import numpy as n

x=n.arange(-n.pi,n.pi,0.01)
y=n.sin(x)
plt.ylabel('sin(x)')
plt.xlabel('x')
plt.title('Sinus of x')
plt.plot(x,y)
plt.show()
#plt.savefile('sinus_x.png')
}}}

== ScientificPython ==
[[http://dirac.cnrs-orleans.fr/plone/software/scientificpython|ScientificPython]]

[[http://dirac.cnrs-orleans.fr/ScientificPython/ScientificPythonManual/|ScientificPythonManual]]

[[http://scipy-central.org/]]

== genutils ==

=== statistics ===

{{{#!highlight python

import genutil.statistics

}}}

http://www2-pcmdi.llnl.gov/cdat/source/api-reference/genutil.statistics.html

=== statusbar ===
{{{#!highlight python

import genutil.statusbar

prevall=0
previ=0
prevj=0
prevtxt=0
ni=100
nj=20
for i in range(ni):
   previ=statusbar(float(i)/ni,prev=previ,tk=1)
for j in range(nj):
    prevj=statusbar(float(j)/nj,prev=prevj,tk=1)
    prevall=statusbar([float(i)/ni,float(j)/nj],prev=prevall,tk=1,title='Test')
    prevtxt=statusbar(float(j)/nj,prev=prevtxt,tk=None,title='Test')



}}}

== Cool modules ==

 * PIL
 * pygrib
 * csv
 * ftplib
 * cgi
 * netrc
 * matplotlib