RE: Problem with subprocess.call and windows schtasks

2012-11-23 Thread Prasad, Ramit 
Dave Angel wrote:
 
 On 11/20/2012 06:41 PM, Tom Borkin wrote:
 
 (Please don't top-post.  Now we lose all the context)
  Using shlex, I now have this:
  #!\Python27\python
  import os, subprocess
  path = os.path.join(C:\\, Program Files, Apache Group, Apache2,
  htdocs, ccc, run_alert.py)
  #subprocess.call(['SchTasks', '/Create', '/SC', 'ONCE', '/TN', 'test',
  '/TR', path, '/ST', '23:50'])
  subprocess.call(['SchTasks', '/Create', '/SC', 'ONCE', '/TN', 'test',
  '/TR', 'run_alert.py', '/ST', '23:50'])
  Both of the above commands throw the same error:
  ERROR: The filename, directory name or volume label syntax is incorrect.
 
 I don't use Windows, but doesn't a Windows program usually have an .exe
 extension?  So why would you expect it to find SchTasks ?  Adding
 extensions is a shell feature, and you're not using the shell.
 
 Also, you should take a look at the value path.  On Linux, it shows up as:
 
 C:\\/Program Files/Apache Group/Apache2/htdocs/ccc/run_alert.py
 
 It'll be different under Windows, but probably still wrong.

Windows 7 + Python 2.6
 os.path.join(C:\\, Program Files, Apache Group, Apache2,
...  htdocs, ccc, run_alert.py)
'C:\\Program Files\\Apache Group\\Apache2\\htdocs\\ccc\\run_alert.py'


~Ramit


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Re: Problem with subprocess.call and windows schtasks

2012-11-21 Thread Tim Golden 
On 20/11/2012 23:41, Tom Borkin wrote:
 Using shlex, I now have this:
 #!\Python27\python
 import os, subprocess
 path = os.path.join(C:\\, Program Files, Apache Group, Apache2,
 htdocs, ccc, run_alert.py)
 #subprocess.call(['SchTasks', '/Create', '/SC', 'ONCE', '/TN', 'test',
 '/TR', path, '/ST', '23:50'])
 subprocess.call(['SchTasks', '/Create', '/SC', 'ONCE', '/TN', 'test',
 '/TR', 'run_alert.py', '/ST', '23:50'])
 Both of the above commands throw the same error:
 ERROR: The filename, directory name or volume label syntax is incorrect.

The following works for me:

import subprocess
path = rC:\Program Files\Apache Group\Apache2\htdocs\ccc\run_alert.py
subprocess.call([
  'SchTasks', '/Create',
  '/SC', 'ONCE',
  '/TN', 'test',
  '/TR', path,
  '/ST', '23:50'
])

Things to note:

* I haven't added extra quoting to any of the items in the command list
which is subprocess.call's first parameter. The point about using the
list (as opposed to passing an entire string which you can also do) is
that the subprocess module can quote things as needed. If you've already
added quotes, you'll get double-quoting which you almost certainly don't
want.

* (Obviously) I've formatted the subprocess.call as I have for clarity,
especially via email. It's just a list.

TJG
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Re: Problem with subprocess.call and windows schtasks

2012-11-21 Thread Tom Borkin 
On Wed, Nov 21, 2012 at 6:01 AM, Tim Golden m...@timgolden.me.uk wrote:

 subprocess.call([
   'SchTasks', '/Create',
   '/SC', 'ONCE',
   '/TN', 'test',
   '/TR', path,
   '/ST', '23:50'
 ])

Thank you. Yes, it was the quoting of test. Oops :-}
Thanks again,
Tom
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Re: Problem with subprocess.call and windows schtasks

2012-11-20 Thread Tom Borkin 
Using shlex, I now have this:
#!\Python27\python
import os, subprocess
path = os.path.join(C:\\, Program Files, Apache Group, Apache2,
htdocs, ccc, run_alert.py)
#subprocess.call(['SchTasks', '/Create', '/SC', 'ONCE', '/TN', 'test',
'/TR', path, '/ST', '23:50'])
subprocess.call(['SchTasks', '/Create', '/SC', 'ONCE', '/TN', 'test',
'/TR', 'run_alert.py', '/ST', '23:50'])
Both of the above commands throw the same error:
ERROR: The filename, directory name or volume label syntax is incorrect.

Pls advise.
TIA,
Tom



On Sun, Nov 18, 2012 at 12:39 PM, Chris Rebert c...@rebertia.com wrote:

 On Sun, Nov 18, 2012 at 5:48 AM, Tom Borkin borkin...@gmail.com wrote:
  Hi,
  I have this code:
 
  #!\Python27\python
 
  import subprocess
  #subprocess.call(['SchTasks /Create /SC ONCE /TN My Tasks /TR
 C:/Program
  Files/Apache Group/Apache2/htdocs/ccc/run_alert.py /ST 07:50'],
 shell=True)
  subprocess.call(['SchTasks /Create /SC ONCE /TN test /TR run_alert.py
  /ST 07:50'], shell=True)
  With either call, I get this error:
  C:\Program Files\Apache Group\Apache2\htdocs\ron_alert_activity.py
  The system cannot find the path specified.
 
  If I remove the , shell=True I get this:
  C:\Program Files\Apache Group\Apache2\htdocs\ron_alert_activity.py
   C:\Program Files\Apache Group\Apache2\htdocs\ccc\cron_alert_activity.py,
  line 4, in module
subprocess.call(['SchTasks /Create /SC ONCE /TN test /TR
 run_alert.py
  /ST 07:50'])
   File C:\Python27\lib\subprocess.py, line 493, in call
return Popen(*popenargs, **kwargs).wait()
   File C:\Python27\lib\subprocess.py, line 679, in __init__ errread,
  errwrite)
   File C:\Python27\lib\subprocess.py, line 896, in _execute_child
  startupinfo)
  WindowsError: [Error 2] The system cannot find the file specified
  The file exists in said directory. I can execute it from the cmd prompt.

 Per the docs (
 http://docs.python.org/2/library/subprocess.html#frequently-used-arguments
 ):
 If passing a single string [as the `args` argument], either `shell`
 must be True (see below) or else the string must simply name the
 program to be executed **without specifying any arguments.**
 (emphasis mine)

  So I tried this:
  pgm = SchTasks
  args = ['/Create /SC ONCE /TN test /TR run_alert.py /ST 07:50']
  #args = ['/Create', '/SC ONCE', '/TN test', '/TR run_alert.py', '/ST
  07:50']
  cmd = [pgm]
  cmd.extend(args)
  subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()[0]
  but got this error:
  ERROR: Invalid argument/option - the above argument
 
  If I use the other args list I get this error:
  ERROR: Invalid argument/option - '/SC ONCE'
  so apparently it liked the first argument.
 
  Please advise.

 Your tokenization of your command is incorrect. Consult the Note box
 in the docs regarding `args` tokenization, and apply it to your
 command:
 http://docs.python.org/2/library/subprocess.html#subprocess.Popen

 The-docs-are-your-friend-ly Yours,
 Chris

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Re: Problem with subprocess.call and windows schtasks

2012-11-20 Thread Dave Angel 
On 11/20/2012 06:41 PM, Tom Borkin wrote:

(Please don't top-post.  Now we lose all the context)
 Using shlex, I now have this:
 #!\Python27\python
 import os, subprocess
 path = os.path.join(C:\\, Program Files, Apache Group, Apache2,
 htdocs, ccc, run_alert.py)
 #subprocess.call(['SchTasks', '/Create', '/SC', 'ONCE', '/TN', 'test',
 '/TR', path, '/ST', '23:50'])
 subprocess.call(['SchTasks', '/Create', '/SC', 'ONCE', '/TN', 'test',
 '/TR', 'run_alert.py', '/ST', '23:50'])
 Both of the above commands throw the same error:
 ERROR: The filename, directory name or volume label syntax is incorrect.

I don't use Windows, but doesn't a Windows program usually have an .exe
extension?  So why would you expect it to find SchTasks ?  Adding
extensions is a shell feature, and you're not using the shell.

Also, you should take a look at the value path.  On Linux, it shows up as:

C:\\/Program Files/Apache Group/Apache2/htdocs/ccc/run_alert.py

It'll be different under Windows, but probably still wrong.


-- 

DaveA

-- 
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Re: Problem with subprocess.call and windows schtasks

2012-11-18 Thread Tim Golden 

On 18/11/2012 13:48, Tom Borkin wrote:

import subprocess
#subprocess.call(['SchTasks /Create /SC ONCE /TN My Tasks /TR C:/Program
Files/Apache Group/Apache2/htdocs/ccc/run_alert.py /ST 07:50'], shell=True)
subprocess.call(['SchTasks /Create /SC ONCE /TN test /TR run_alert.py
/ST 07:50'], shell=True)
With either call, I get this error:
C:\Program Files\Apache Group\Apache2\htdocs\ron_alert_activity.py
The system cannot find the path specified.


Generally, with subprocess call:

* Pass each element in the command line as a separate element in the 
list: ['SchTasks', '/Create', '/SC', 'ONCE', ... c.]


* Don't use shell=True unless you're running a command which is internal 
to cmd.exe (such as dir, copy, etc.). If you're running anything which 
exists as its own .exe, you shouldn't be using shell=True.


TJG
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Re: Problem with subprocess.call and windows schtasks

2012-11-18 Thread Chris Rebert 
On Sun, Nov 18, 2012 at 5:48 AM, Tom Borkin borkin...@gmail.com wrote:
 Hi,
 I have this code:

 #!\Python27\python

 import subprocess
 #subprocess.call(['SchTasks /Create /SC ONCE /TN My Tasks /TR C:/Program
 Files/Apache Group/Apache2/htdocs/ccc/run_alert.py /ST 07:50'], shell=True)
 subprocess.call(['SchTasks /Create /SC ONCE /TN test /TR run_alert.py
 /ST 07:50'], shell=True)
 With either call, I get this error:
 C:\Program Files\Apache Group\Apache2\htdocs\ron_alert_activity.py
 The system cannot find the path specified.

 If I remove the , shell=True I get this:
 C:\Program Files\Apache Group\Apache2\htdocs\ron_alert_activity.py
  C:\Program Files\Apache Group\Apache2\htdocs\ccc\cron_alert_activity.py,
 line 4, in module
   subprocess.call(['SchTasks /Create /SC ONCE /TN test /TR run_alert.py
 /ST 07:50'])
  File C:\Python27\lib\subprocess.py, line 493, in call
   return Popen(*popenargs, **kwargs).wait()
  File C:\Python27\lib\subprocess.py, line 679, in __init__ errread,
 errwrite)
  File C:\Python27\lib\subprocess.py, line 896, in _execute_child
 startupinfo)
 WindowsError: [Error 2] The system cannot find the file specified
 The file exists in said directory. I can execute it from the cmd prompt.

Per the docs 
(http://docs.python.org/2/library/subprocess.html#frequently-used-arguments
):
If passing a single string [as the `args` argument], either `shell`
must be True (see below) or else the string must simply name the
program to be executed **without specifying any arguments.**
(emphasis mine)

 So I tried this:
 pgm = SchTasks
 args = ['/Create /SC ONCE /TN test /TR run_alert.py /ST 07:50']
 #args = ['/Create', '/SC ONCE', '/TN test', '/TR run_alert.py', '/ST
 07:50']
 cmd = [pgm]
 cmd.extend(args)
 subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()[0]
 but got this error:
 ERROR: Invalid argument/option - the above argument

 If I use the other args list I get this error:
 ERROR: Invalid argument/option - '/SC ONCE'
 so apparently it liked the first argument.

 Please advise.

Your tokenization of your command is incorrect. Consult the Note box
in the docs regarding `args` tokenization, and apply it to your
command:
http://docs.python.org/2/library/subprocess.html#subprocess.Popen

The-docs-are-your-friend-ly Yours,
Chris
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