where to view open() function's C implementation source code ?

[Roy Smith]

In article <ad040201-ba94-496c-bb17-7433b0e09d9d at googlegroups.com>,
 iMath <redstone-cold at 163.com> wrote:

> � 2012”N12ŒŽ18“��Š�“�UTC+8‰�Œ�1时35分58秒，Roy Smith写道：
> > In article <f3af9605-2dc7-40a9-861f-52724d29bf1e at googlegroups.com>,
> > 
> >  iMath <redstone-cold at 163.com> wrote:
> > 
> > 
> > 
> > > where to view  open() function's C implementation source code ？
> > 
> > 
> > 
> > http://www.python.org/download/releases/
> > 
> > 
> > 
> > Download the source for the version you're interested in.
> 
> but which python module is  open() in ?

I met you half-way, I showed you where the source code is.  Now you 
need to come the other half and look at the code.  Maybe start by 
grepping the entire source tree for "open"?