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From: Chris Angelico <rosuav@gmail.com>
Newsgroups: comp.lang.python
Subject: Re: How to use internal python c funtions, from python code
Date: Thu, 10 Dec 2015 15:53:48 +1100
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On Thu, Dec 10, 2015 at 3:44 PM, srinivas devaki
<mr.eightnoteight@gmail.com> wrote:
> For competitive programming purposes I really want to use those functions
> for speed.

Recommendation: Write your code the simple and obvious way, and *then*
start thinking about speed. And before you look at calling on C code
manually, try running your code in PyPy, and then try making use of
Cython.

For the specific example of converting an integer into a string using
a particular base, there are quite a few options available; but I
would recommend using the very simplest you can get away with.

ChrisA