maybe a popen question... or something else?

[dude]

Working on Windows XP
Say I have a Windows executable, foo.exe.
foo.exe is a command line tool that can take a number of different
arguments and perform corresponding actions.

I want to invoke foo.exe from a Python script (using whatever will
work best). I want to continuously pass arguments to foo.exe in
between doing other stuff from within my Python script.

Some pseudo code:

processHandle = invoke("foo.exe") # what python module should "invoke"
be here?

doUnrelatedStuff()

processHandle.passArgs("arg1 arg2") # The same foo.exe I invoked above
gets these args for processing

doMoreUnrelatedStuff()

processHandle.passArgs("arg3 arg4") # The same foo.exe I invoked above
gets these args for processing

processHandle.close() # "foo.exe is destroyed"

Thanks for any help.

[Steve Holden]

dude wrote:

Working on Windows XP
Say I have a Windows executable, foo.exe.
foo.exe is a command line tool that can take a number of different
arguments and perform corresponding actions.

I want to invoke foo.exe from a Python script (using whatever will
work best). I want to continuously pass arguments to foo.exe in
between doing other stuff from within my Python script.

Some pseudo code:

processHandle = invoke("foo.exe") # what python module should "invoke"
be here?

doUnrelatedStuff()

processHandle.passArgs("arg1 arg2") # The same foo.exe I invoked above
gets these args for processing

doMoreUnrelatedStuff()

processHandle.passArgs("arg3 arg4") # The same foo.exe I invoked above
gets these args for processing

processHandle.close() # "foo.exe is destroyed"

Thanks for any help.

When you say "pass arguments", the methodology you outline definitely
isn't going to fly with argument passing. When a command is invoked the
arguments are taken from the command line, so it isn't possible to pass
further arguments at a later time.

You probably need to write to you sub-process's standard input stream.
which you can do whit the subprocess module (the modern way to do it) or
one of the various popen() functions.

regards
Steve
--
Steve Holden [phone] [phone]
Holden Web LLC/Ltd http://www.holdenweb.com
Skype: holdenweb http://del.icio.us/steve.holden
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[Steve Holden]

dude wrote:

Working on Windows XP
Say I have a Windows executable, foo.exe.
foo.exe is a command line tool that can take a number of different
arguments and perform corresponding actions.

I want to invoke foo.exe from a Python script (using whatever will
work best). I want to continuously pass arguments to foo.exe in
between doing other stuff from within my Python script.

Some pseudo code:

processHandle = invoke("foo.exe") # what python module should "invoke"
be here?

doUnrelatedStuff()

processHandle.passArgs("arg1 arg2") # The same foo.exe I invoked above
gets these args for processing

doMoreUnrelatedStuff()

processHandle.passArgs("arg3 arg4") # The same foo.exe I invoked above
gets these args for processing

processHandle.close() # "foo.exe is destroyed"

Thanks for any help.

When you say "pass arguments", the methodology you outline definitely
isn't going to fly with argument passing. When a command is invoked the
arguments are taken from the command line, so it isn't possible to pass
further arguments at a later time.

You probably need to write to you sub-process's standard input stream.
which you can do whit the subprocess module (the modern way to do it) or
one of the various popen() functions.

regards
Steve
--
Steve Holden [phone] [phone]
Holden Web LLC/Ltd http://www.holdenweb.com
Skype: holdenweb http://del.icio.us/steve.holden
--------------- Asciimercial ------------------
Get on the web: Blog, lens and tag the Internet
Many services currently offer free registration
----------- Thank You for Reading -------------