awesome-machine-learning/scripts/pull_R_packages.py
Sumit Khanna 2689ecbca7 update it to write packages to a text file
Codecs is needed for reading/writing unicode chars(range 128+) too.
2015-02-08 01:34:10 +05:30

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Python
Executable File

#!/usr/bin/python
"""
This script will scrape the r-project.org machine learning selection and format the packages
in github markdown style for this awesome-machine-learning repo.
"""
from pyquery import PyQuery as pq
import urllib
import codecs
text_file = codecs.open("Packages.txt",encoding='utf-8',mode="w")
d = pq(url='http://cran.r-project.org/web/views/MachineLearning.html',opener=lambda url, **kw: urllib.urlopen(url).read())
for e in d("li").items():
package_name = e("a").html()
package_link = e("a")[0].attrib['href']
if '..' in package_link:
package_link = package_link.replace("..",'http://cran.r-project.org/web')
dd = pq(url=package_link,opener=lambda url, **kw: urllib.urlopen(url).read())
package_description = dd("h2").html()
text_file.write(" [%s](%s) - %s \n" % (package_name,package_link,package_description))
# print "* [%s](%s) - %s" % (package_name,package_link,package_description)
index += 1