python

Python Collections Counter

A Counter is a container that tracks how many times equivalent values are added.

Python Mechanize: web browsing

Stateful programmatic web browsing in Python, after Andy Lester’s Perl module WWW::Mechanize.

mechanize.Browser and mechanize.UserAgentBase implement the interface of urllib2.OpenerDirector, so:

any URL can be opened, not just http:

mechanize.UserAgentBase offers easy dynamic configuration of user-agent features like protocol, cookie, redirection and robots.txt handling, without having to make a new OpenerDirector each time, e.g. by callingbuild_opener().

Easy HTML form filling.

Convenient link parsing and following.

Browser history (.back() and .reload() methods).

The Referer HTTP header is added properly (optional).

Automatic observance of robots.txt.

PyCURL

PycURL is a Python interface to libcurl. PycURL can be used to fetch objects identified by a URL from a Python program, similar to the urllib Python module. PycURL is mature, very fast, and supports a lot of features

Introduction to Python async/await

Python 3.5 is coming up soon with async and await built-in keywords. Let’s get excited with a couple of simple examples showing off how to use this new syntax.