os.system vs. Py2Exe

[Lad]

bokr at oz.net (Bengt Richter) wrote in message news:<cjcsu9$tda$0$216.39.172.122 at theriver.com>...
> On 28 Sep 2004 19:15:52 GMT, Grant Edwards <grante at visi.com> wrote:
> 
> >On 2004-09-28, Lad <export at hope.cz> wrote:
> >
> >> Yes, I installed all files( I think) because everything else
> >> works. Only os.system does NOT.  I use os.system to open txt
> >> file.I use it like os.system('Myfile.txt')
> >
> >What makes you think that should work?  
> >
> >Is Myfile.txt an executable file?  Under Win32, don't
> >executble file's names usually end in .exe?
> 
> It's not a matter of _being_ executable, it's a matter of having an executable
> _associated with_ the extension. Typically notepad.exe is associated with .txt
> (via an intermediate association with a generic file type name that in turn
> is associated with the actual executable):
> ----
> [16:30] C:\pywk\junk>assoc .txt
> .txt=txtfile
> 
> [16:30] C:\pywk\junk>ftype txtfile
> txtfile=C:\WINNT\System32\NOTEPAD.EXE %1
> ----
> 
> >> When I use os.startfile instead  of os.system it works well.
> >
> >Then why not use os.startfile()?  It's the correct way to start
> >the program that is supposed to handle .txt files.
> One difference is that os.system will wait for the completion of what it starts,
> but os.startfile will start a new process to do it, and return immediately.
> 
> I would try it with full absolute paths to everything the in the os.system call.
> If that works, you can look for why the environment is different.
> 
> BTW, if you execute via start menu or double clicking a desktop icon, the associated
> .lnk may specify the starting directory. If that is different from current directory,
> bare names may be looked for in unexpected place and not be found (or worse, a file
> of the same name may be found, but be the wrong one). Right click on the icon and look
> at the properties. Or right click the task bar and chase properties of start menus that way,
> or start>settings>taskbar> etc.
> 
> BTW2, if you want to type in a file name without extension, as you can with .exe
> and .bat etc., it implies a priority choice if e.g. both .exe and .bat exist
> in the same path directory. You can influence this by the PATHEXT environment
> variable. Go to a console window and type
>     help ftype|more
> and also
>     help assoc|more
> for additional info
> 
> BTW3, beware of changing .exe association!! I was aghast to find (some time ago) that
> NS4.5 let me change that association via its file association option interface.
> It was pretty squirrely to get back to normal. No console commands would work.
> (IIRC I finally used  start menu>run>browse to find and execute regedit32 and repaired
> it that way, after booting in last known good to see what the registry was supposed to be
> for .exe). Very anxious moments there ;-)
> 
> Regards,
> Bengt Richter

.txt file is associated with a propper application( Notepad.txt). AS I
said above, with os.startfile the file is open in Notepad.txt but not
if I use os.system. I can not use os.startfile, because it does not
wait until .txt file is closed