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Date: Tue, 18 Dec 2012 13:09:42 -0800
From: Andrew Robinson <andrew3@r3dsolutions.com>
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Subject: Re: where to view open() function's C implementation source code ?
References: <f3af9605-2dc7-40a9-861f-52724d29bf1e@googlegroups.com> <roy-9CAF53.00355818122012@news.panix.com> <ad040201-ba94-496c-bb17-7433b0e09d9d@googlegroups.com> <roy-0389D1.09281918122012@news.panix.com> <CAPTjJmrZTp9BigC2nr5Ne1Yge_Q-Tnp1d_7SLbKVzSeB0iaWOw@mail.gmail.com>
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On 12/18/2012 07:03 AM, Chris Angelico wrote:
> On Wed, Dec 19, 2012 at 1:28 AM, Roy Smith<roy@panix.com>  wrote:
>> In article<ad040201-ba94-496c-bb17-7433b0e09d9d@googlegroups.com>,
>>   iMath<redstone-cold@163.com>  wrote:
>>>> 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"?
> Ouch, that mightn't be very effective! With some function names, you
> could do that. Not so much "open". Still, it'd be a start...
>
> ChrisA
In Python3.3.0 -- the built in open() appears in 
Python-3.3.0/Modules/_io/_iomodule.c;
There is another module defined in an object in 
Python-3.3.0/Modules/_io/fileio.c; but I don't think that the one called 
when a lone x=open(...) is done.

Cheers.
--Andrew.