[Python-Dev] Internal counter to debug leaking file descriptors

[Glyph Lefkowitz]

On Aug 31, 2010, at 10:03 AM, Guido van Rossum wrote:

> On Linux you can look somewhere in /proc, but I don't know that it
> would help you find where a file was opened.

"/dev/fd" is actually a somewhat portable way of getting this information.  I don't think it's part of a standard, but on Linux it's usually a symlink to "/proc/self/fd", and it's available on MacOS and most BSDs (based on a hasty and completely-not-comprehensive investigation).  But it won't help you find out when the FDs were originally opened, no.