Launching command on windows

[Alexandre Badez]

Hy,

I'm working on windows and I try to do something like:

import os
APP = os.path.abspath("C:\\Program Files\\Notepad++\\notepad++.exe")
FILE1 = os.path.abspath("D:\\Documents and settings\\test1.py")
FILE2 = os.path.abspath("D:\\Documents and settings\\test2.py")
command = '"%(app)s" "%(file1)s" "%(file2)s"' % {
'app' : APP,
'file1' : FILE1,
'file2' : FILE2}
# === FOR 'DEBUG' ===
print APP
print FILE1
print FILE2
print command
print repr(command)
# === END FOR 'DEBUG' ===
os.system(command)


This code give in output:
C:\Program Files\Notepad++\notepad++.exe
D:\Documents and settings\test1.py
D:\Documents and settings\test2.py
"C:\Program Files\Notepad++\notepad++.exe" "D:\Documents and settings
\test1.py" "D:\Documents and settings\test2.py"
'"C:\\Program Files\\Notepad++\\notepad++.exe" "D:\\Documents and
settings\\test1.py" "D:\\Documents and settings\\test2.py"'

'C:\Program' n'est pas reconnu en tant que commande interne
ou externe, un programme ex,cutable ou un fichier de commandes.
# <= My windows is a french one
# This error message could be translated as:
# 'c:\Program' is not an internal nor external command, an executable
program nor a command file

But if I copy the command in the output, an paste it in a console, it
work very well.
Does any of you know what I can do ?

PS: I think I'm oblige to add " neer every path for spaces in path,
but if you know an other way, it could be cool

 

[mauro]

Hy,

I'm working on windows and I try to do something like:

import os
APP = os.path.abspath("C:\\Program Files\\Notepad++\\notepad++.exe")
FILE1 = os.path.abspath("D:\\Documents and settings\\test1.py")
FILE2 = os.path.abspath("D:\\Documents and settings\\test2.py")
command = '"%(app)s" "%(file1)s" "%(file2)s"' % {
'app' : APP,
'file1' : FILE1,
'file2' : FILE2}
# === FOR 'DEBUG' ===
print APP
print FILE1
print FILE2
print command
print repr(command)
# === END FOR 'DEBUG' ===
os.system(command)

This code give in output:
C:\Program Files\Notepad++\notepad++.exe
D:\Documents and settings\test1.py
D:\Documents and settings\test2.py
"C:\Program Files\Notepad++\notepad++.exe" "D:\Documents and settings
\test1.py" "D:\Documents and settings\test2.py"
'"C:\\Program Files\\Notepad++\\notepad++.exe" "D:\\Documents and
settings\\test1.py" "D:\\Documents and settings\\test2.py"'

'C:\Program' n'est pas reconnu en tant que commande interne
ou externe, un programme ex,cutable ou un fichier de commandes.
# <= My windows is a french one
# This error message could be translated as:
# 'c:\Program' is not an internal nor external command, an executable
program nor a command file

But if I copy the command in the output, an paste it in a console, it
work very well.
Does any of you know what I can do ?

PS: I think I'm oblige to add " neer every path for spaces in path,
but if you know an other way, it could be cool

If you don't mind using spawnl instead of system, this should work
even with spaces:
os.spawnl(os.P_NOWAITO, command)
I hope it helps.

Mauro

 

[kyosohma]

Hy,

I'm working on windows and I try to do something like:

import os
APP = os.path.abspath("C:\\Program Files\\Notepad++\\notepad++.exe")
FILE1 = os.path.abspath("D:\\Documents and settings\\test1.py")
FILE2 = os.path.abspath("D:\\Documents and settings\\test2.py")
command = '"%(app)s" "%(file1)s" "%(file2)s"' % {
'app' : APP,
'file1' : FILE1,
'file2' : FILE2}
# === FOR 'DEBUG' ===
print APP
print FILE1
print FILE2
print command
print repr(command)
# === END FOR 'DEBUG' ===
os.system(command)

This code give in output:
C:\Program Files\Notepad++\notepad++.exe
D:\Documents and settings\test1.py
D:\Documents and settings\test2.py
"C:\Program Files\Notepad++\notepad++.exe" "D:\Documents and settings
\test1.py" "D:\Documents and settings\test2.py"
'"C:\\Program Files\\Notepad++\\notepad++.exe" "D:\\Documents and
settings\\test1.py" "D:\\Documents and settings\\test2.py"'

'C:\Program' n'est pas reconnu en tant que commande interne
ou externe, un programme ex,cutable ou un fichier de commandes.
# <= My windows is a french one
# This error message could be translated as:
# 'c:\Program' is not an internal nor external command, an executable
program nor a command file

But if I copy the command in the output, an paste it in a console, it
work very well.
Does any of you know what I can do ?

PS: I think I'm oblige to add " neer every path for spaces in path,
but if you know an other way, it could be cool

I got it to work using subprocess.Popen

Not sure why it doesn't work with os.system though.

Mike

 

[Alexandre Badez]

I got it to work using subprocess.Popen

Not sure why it doesn't work with os.system though.

Mike

Thanks Mike and Mauro,

Mauro, your solution do not seems to work (or I made a mistake..)
Mike your solution work great, thanks.
But, I steel think it's a bug (python or window ??).
I will try to take a look about it, when I have time.

Alex

 

[kyosohma]

Thanks Mike and Mauro,

Mauro, your solution do not seems to work (or I made a mistake..)
Mike your solution work great, thanks.
But, I steel think it's a bug (python or window ??).
I will try to take a look about it, when I have time.

Alex

Some of those spawn methods from the os module don't work on Windows
although that one doesn't seem to be one of the excluded:
http://docs.python.org/lib/os-process.html.

You should use subprocess regardless as the os.system and os.spawn*
calls are to be deprecated.

http://docs.python.org/lib/module-subprocess.html

Replacing os.Popen* and os.spawn* calls with subprocess:
http://docs.python.org/lib/node534.html
http://docs.python.org/lib/node537.html

Mike