NumPy and SciPy modules

First, let's take a look at the NumPy and SciPy module documentation. What will be described here is not a topic specific to data analysis, but more of a general Python item.

The following code prints the descriptions of subpackages for NumPy and SciPy:

import pkgutil as pu
import numpy as np
import matplotlib as mpl
import scipy as sp
import pydoc


print "NumPy version", np.__version__
print "SciPy version", sp.__version__
print "Matplotlib version", mpl.__version__

def clean(astr):
   s = astr
   # remove multiple spaces
   s = ' '.join(s.split())
   s = s.replace('=','')

   return s

def print_desc(prefix, pkg_path):
   for pkg in pu.iter_modules(path=pkg_path):
      name = prefix + "." + pkg[1]

      if pkg[2] == True:
         try:
            docstr = pydoc.plain(pydoc.render_doc(name))
            docstr = clean(docstr)
            start = docstr.find("DESCRIPTION")
            docstr = docstr[start: start + 140]
            print name, docstr
         except...