Got it now.

On Jan 31, 12:27 am, John Heenan <johnmhee...@gmail.com> wrote:
> I have not get my point across.
>
> By 'Python exec' I mean using the 'exec' internal Python command. I
> don't mean 'Python exec' as a shorthand for 'execute a new Unix,
> Windows or Mac OS process under the ownership of the cron code written
> in Python'.
>
> I have just examined the most recent trunk version of cron.py 
> inhttp://code.google.com/p/web2py/source/browse/gluon/contrib/cron.py
>
> For .py files the Popen command is still executed using the
> cronlauncher class that uses Popen
>
> For those of us trying ot keep RAM usage down, who don't want to use a
> regular crontab and who only want to run Python files, using Popen is
> not necessasry.
>
> My point is can we have an option to:
>
> 1) Just do an Python exec on an opened file contents (with ot without
> the models envrionment), instead of doing a Popen
> 2) Have an option to do an Python exec on a string, such as on "import
> a; a.mycronaction()"
>
> Thanks
>
> John Heenan
>
> On Jan 31, 2:17 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> > Unless we misunderstand we have that already. The file just needs to
> > end in .py as in
>
> > * * * * * root myscript.py
>
> > You can also call actions
>
> > * * * * * root *myscript.py
>
> > so that models are imported.
>
> > On Jan 30, 8:36 pm, John Heenan <johnmhee...@gmail.com> wrote:
>
> > > Hi AchipA
>
> > > Another feature request, if the cron file is a python file, how about
> > > a cron option to open the file and do an exec on the file contents?
>
> > > Thanks
>
> > > John Heenan
>
> > > On Jan 31, 12:33 pm, John Heenan <johnmhee...@gmail.com> wrote:
>
> > > > Hi AchipA
>
> > > > Your cron is nice work and neatly deals with the messy side of
> > > > launching an independent OS process and waiting for it to finish.
>
> > > > For those of us who do not wish to launch an independent process (to
> > > > keep down memory use) and are happy to stick with Python for cron
> > > > jobs, following is a request to add in the following feature to your
> > > > cron fpr web2py.
>
> > > > Provide a mechanism to just perform a Python exec on a string
> > > > statment.
>
> > > > For example a string statement might be
> > > > "import a; a.mycronaction()"
>
> > > > Thanks
>
> > > > John Heenan
>
> > > > On Jan 31, 6:52 am, AchipA <attila.cs...@gmail.com> wrote:
>
> > > > > Just to chime in, I'm still alive and preparing an update to cron as
> > > > > quite a few things changed since I last touched it. As for the
> > > > > questions - all cron modes support the * and ** syntax, and yes, cron
> > > > > files can be modified on the fly.
>
> > > > > On Jan 26, 4:00 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> > > > > > I did not write cron personally and I am still trying to understand
> > > > > > some of it, Attila did.
> > > > > > I am in the looking at cron these days to treamline it a bit and I 
> > > > > > am
> > > > > > trying to understand better as it works.
>
> > > > > > Since windows does not have cron, you should use web2py hardcron. It
> > > > > > should work on windows 7 but I have not tried it. The "root" is the
> > > > > > username that should run the cron task. It is only used by extcron 
> > > > > > and
> > > > > > ignored otherwise (but must be there, for compatibility of syntax).
>
> > > > > > I am not sure if tasks staring with * or ** run under extcron so I
> > > > > > suggest not using pycron. Given hardcron you do not need pycron
> > > > > > anyway.
>
> > > > > > Mind that this is in the process of being refactored a bit. Perhaps
> > > > > > you can help with testing and debugging so you can be sure it works 
> > > > > > as
> > > > > > you need it.
>
> > > > > > On Jan 26, 4:27 am, Oguz Yarimtepe <oguzyarimt...@gmail.com> wrote:
>
> > > > > > > Hi,
>
> > > > > > > I was trying to use the cron property of web2py at my project. I 
> > > > > > > am
> > > > > > > using web2py under windows 7. I had installed wamp server with 
> > > > > > > mod_wsgi.
> > > > > > > According to the documentation it is suggested to use the 
> > > > > > > external cron.
> > > > > > > I tried to test the soft cron issue so i added the below line to 
> > > > > > > my
> > > > > > > application crontab
>
> > > > > > > #crontab
> > > > > > > */2        *        *        *        *        root *decrease/
>
> > > > > > > and at the controllers directory the decrease file is as is
>
> > > > > > > # coding: utf8
>
> > > > > > > def index():
>
> > > > > > >      f=file("C:\\Users\\oguz\\hede.txt", "w+")
> > > > > > >      f.write("ok")
> > > > > > >      f.close()
>
> > > > > > >      return dict()
>
> > > > > > > So when the application is loaded shouldn't i see the txt is 
> > > > > > > created at
> > > > > > > every 2 minutes?
>
> > > > > > > What is the usage of the root keyword at the crontab file? For 
> > > > > > > windows
> > > > > > > application what should it be?
>
> > > > > > > And if i want to use the external cron method, it says i should 
> > > > > > > add a
> > > > > > > line to system cron file. This doesn't sound me so effective at my
> > > > > > > application so i will be prefering to use something like pycron. 
> > > > > > > Anybody
> > > > > > > tested these things at windows 7?
>
>

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