Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #22015 > unrolled thread

Accessing the files by last modified time

Back to article view | Back to comp.lang.python

Contents

  Accessing the files by last modified time Sangeet <mrsangeet@gmail.com> - 2012-03-22 04:33 -0700
    Re: Accessing the files by last modified time Chris Rebert <clp2@rebertia.com> - 2012-03-22 04:49 -0700
      Re: Accessing the files by last modified time Sangeet <mrsangeet@gmail.com> - 2012-03-23 06:00 -0700
      Re: Accessing the files by last modified time Sangeet <mrsangeet@gmail.com> - 2012-03-23 06:00 -0700
    Re: Accessing the files by last modified time Tim Williams <tjandacw@cox.net> - 2012-03-22 05:04 -0700
      Re: Accessing the files by last modified time Neil Cerutti <neilc@norwich.edu> - 2012-03-22 13:06 +0000
      Re: Accessing the files by last modified time Sangeet <mrsangeet@gmail.com> - 2012-03-23 05:59 -0700
    Re: Accessing the files by last modified time Peter Otten <__peter__@web.de> - 2012-03-22 13:38 +0100

#22015 — Accessing the files by last modified time

Hi

I am new to the python programming language.

I've been trying to write a script that would access the last modified file in one of my directories. I'm using Win XP. 

I saw a similar topic, on the forum before, however the reply using (os.popen) didn't work out for me. I'm not sure whether it was due to syntax errors either.

Thanks,
Sangeet

[toc] | [next] | [standalone]

#22016

On Thu, Mar 22, 2012 at 4:33 AM, Sangeet <mrsangeet@gmail.com> wrote:
> Hi
>
> I am new to the python programming language.
>
> I've been trying to write a script that would access the last modified file in one of my directories. I'm using Win XP.
>
> I saw a similar topic, on the forum before, however the reply using (os.popen) didn't work out for me. I'm not sure whether it was due to syntax errors either.

Recursively or non-recursively?
Live monitoring or just one-time?
What was the forum post in question?

In the simple case, you just need to stitch together these functions:
http://docs.python.org/library/os.html#os.stat
(note the .st_mtime attribute of the result)
http://docs.python.org/library/os.path.html#os.path.join
with one of these functions:
http://docs.python.org/library/os.html#os.listdir
http://docs.python.org/library/os.html#os.walk

Cheers,
Chris

[toc] | [prev] | [next] | [standalone]

#22070

On Thursday, 22 March 2012 17:19:23 UTC+5:30, Chris Rebert  wrote:
> On Thu, Mar 22, 2012 at 4:33 AM, Sangeet <mrsangeet@gmail.com> wrote:
> > Hi
> >
> > I am new to the python programming language.
> >
> > I've been trying to write a script that would access the last modified file in one of my directories. I'm using Win XP.
> >
> > I saw a similar topic, on the forum before, however the reply using (os.popen) didn't work out for me. I'm not sure whether it was due to syntax errors either.
> 
> Recursively or non-recursively?
> Live monitoring or just one-time?
> What was the forum post in question?
> 
> In the simple case, you just need to stitch together these functions:
> http://docs.python.org/library/os.html#os.stat
> (note the .st_mtime attribute of the result)
> http://docs.python.org/library/os.path.html#os.path.join
> with one of these functions:
> http://docs.python.org/library/os.html#os.listdir
> http://docs.python.org/library/os.html#os.walk
> 
> Cheers,
> Chris

Thanks Chris, this helped me a lot! 

[toc] | [prev] | [next] | [standalone]

#22071

On Thursday, 22 March 2012 17:19:23 UTC+5:30, Chris Rebert  wrote:
> On Thu, Mar 22, 2012 at 4:33 AM, Sangeet <mrsangeet@gmail.com> wrote:
> > Hi
> >
> > I am new to the python programming language.
> >
> > I've been trying to write a script that would access the last modified file in one of my directories. I'm using Win XP.
> >
> > I saw a similar topic, on the forum before, however the reply using (os.popen) didn't work out for me. I'm not sure whether it was due to syntax errors either.
> 
> Recursively or non-recursively?
> Live monitoring or just one-time?
> What was the forum post in question?
> 
> In the simple case, you just need to stitch together these functions:
> http://docs.python.org/library/os.html#os.stat
> (note the .st_mtime attribute of the result)
> http://docs.python.org/library/os.path.html#os.path.join
> with one of these functions:
> http://docs.python.org/library/os.html#os.listdir
> http://docs.python.org/library/os.html#os.walk
> 
> Cheers,
> Chris

Thanks Chris, this helped me a lot! 

[toc] | [prev] | [next] | [standalone]

#22017

On Mar 22, 7:33 am, Sangeet <mrsang...@gmail.com> wrote:
> Hi
>
> I am new to the python programming language.
>
> I've been trying to write a script that would access the last modified file in one of my directories. I'm using Win XP.
>
> I saw a similar topic, on the forum before, however the reply using (os.popen) didn't work out for me. I'm not sure whether it was due to syntax errors either.
>
> Thanks,
> Sangeet

Check out os.stat()

[toc] | [prev] | [next] | [standalone]

#22020

On 2012-03-22, Tim Williams <tjandacw@cox.net> wrote:
> On Mar 22, 7:33?am, Sangeet <mrsang...@gmail.com> wrote:
>> Hi
>>
>> I am new to the python programming language.
>>
>> I've been trying to write a script that would access the last
>> modified file in one of my directories. I'm using Win XP.
>>
>> I saw a similar topic, on the forum before, however the reply
>> using (os.popen) didn't work out for me. I'm not sure whether
>> it was due to syntax errors either.
>>
>> Thanks,
>> Sangeet
>
> Check out os.stat()

I've been using os.path.getmtime, and converting that to a
datetime object using datetime.datetime.fromtimestamp.

Surprisingly, perhaps, this has been working.

According to the docs, to avoid making any assumptiong,  I might
need to do:

tm = os.path.getmtime(apath)
lt = time.localtime(tm)
datetime.datetime(lt.tm_year, lt.tm_mon, lt.tm_mday)

Here's where I'm confused about the functioning of my original
plan. The docs say:

 os.path.getmtime
 [...]  The return value is a number giving the number of seconds
 since the epoch (see the time module). [...]

 classmethod datetime.fromtimestamp
 Return the local date and time corresponding to the POSIX
 timestamp, such as returned by time.time(). [...]

 time.time
 Return the time as a floating point number expressed as seconds
 since the epoch, in UTC. [...]

I'm not completely sure the return type of getmtime and the
argument type of fromtimestamp are really the same or not. I
guess I came to that conclusion some time in the past, and it
does seem to work. It may be a simple case of just different
aspects the exact same type being being highlighted in each
definition.

-- 
Neil Cerutti

[toc] | [prev] | [next] | [standalone]

#22069

On Thursday, 22 March 2012 17:34:43 UTC+5:30, Tim Williams  wrote:
> On Mar 22, 7:33 am, Sangeet <mrsang...@gmail.com> wrote:
> > Hi
> >
> > I am new to the python programming language.
> >
> > I've been trying to write a script that would access the last modified file in one of my directories. I'm using Win XP.
> >
> > I saw a similar topic, on the forum before, however the reply using (os.popen) didn't work out for me. I'm not sure whether it was due to syntax errors either.
> >
> > Thanks,
> > Sangeet
> 
> Check out os.stat()

Hey, thanks I tried playing around with this. I haven't got what I exactly wanted, but on the way there for sure! :)

Sangeet

[toc] | [prev] | [next] | [standalone]

#22018

Sangeet wrote:

> I've been trying to write a script that would access the last modified
> file in one of my directories. I'm using Win XP.

import os
import glob

path = r"c:\one\of\my directories\*"

youngest_file = max(glob.glob(path), key=os.path.getmtime)

[toc] | [prev] | [standalone]

Back to top | Article view | comp.lang.python

csiph-web