what is the difference between st_ctime and st_mtime one is the time of last change and the other is the time of last modification, but i can not understand what is the difference between 'change' and 'modification'.

Kristen J. Webb kwebb at teradactyl.com
Fri Sep 28 13:48:23 EDT 2012


The Windows stat() call treats things differently,

FROM: http://msdn.microsoft.com/en-us/library/14h5k7ff%28v=vs.80%29.aspx

  st_ctime

     Time of creation of file. Valid on NTFS but not on FAT formatted disk drives.

I don't think that Windows has a concept of a "change time" for meta data
(though that would be nice).  How's that for compatibility ;)

NOTE: I am a C programmer and new to python, so can anyone comment
on what the st_ctime value is when os.stat() is called on Windows?

Kris
On 9/28/12 9:25 AM, Chris Angelico wrote:
> On Sat, Sep 29, 2012 at 1:18 AM, Christian Heimes <christian at python.org> wrote:
>> Am 28.09.2012 17:07, schrieb Chris Angelico:
>> In the future please read the manual before replying! ;) You are wrong,
>> ctime is *not* the creation time. It's the change time of the inode.
>> It's updated whenever the inode is modified, e.g. metadata modifications
>> like permission changes, link/unlink of hard links etc.
>
> Whoops, my bad! Sorry. I was remembering some other APIs with similar
> terminology.
>
> Lesson: Check the docs, they're more reliable.
>
> ChrisA
>

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