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To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: Is Python a commercial proposition ?
Date: Sun, 29 Jul 2012 15:38:50 -0400
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On 7/29/2012 12:01 PM, lipska the kat wrote:
> I'm trying to understand where Python fits into the set of commonly
> available, commercially used languages of the moment.

Ever heard of a little startup called Google? It was built with C, Java, 
... and Python. I believe Youtube is scripted in Python.

 > Are applications generally written entirely in python
 > or is it more often used for a subset of functionality.

Even if the direct application is in Python, if it runs on CPython, it 
probably uses modules coded or re-coded in C, and it certainly used 
builtin functions and classes coded in C.

The first 'killer app' for Python, in the 1990s, was its use as a glue 
language for interactive and batch scientific/numerical computation 
mostly done in compiled Fortran.

-- 
Terry Jan Reedy