[Python-bugs-list] [ python-Bugs-575770 ] os.spawnv() fails with underscores

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Bugs item #575770, was opened at 2002-07-01 00:15
You can respond by visiting: 
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Category: Python Library
Group: Python 2.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Chris Rodrigues (nokta_kanto)
Assigned to: Nobody/Anonymous (nobody)
Summary: os.spawnv() fails with underscores

Initial Comment:
 I'm running Python 2.2 in Windows 98. 
 
When trying to os.spawnv() a program in a path that contains an 
underscore, the program does not run but no error message is 
printed.  This error happens in the dos version of Python 2.2, but 
not in IDLE. 
 
I detected the error by creating a DOS program that returns the 
recognizable value 111. If I call that file "c:\ret111.exe" and run it with 
the following command: 
 
os.spawnv( os.P_WAIT, progname, [progname] ) 
 
where progname is the full path and name of the program, then the 
function returns the value 111.  If I put that file in 
"c:\pulse_prog\ret111.exe", and run the same command with the new 
value of progname, then the return value is 111 in IDLE but 0 in 
dos-prompt python. 

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>Comment By: Martin v. Löwis (loewis)
Date: 2002-07-30 16:27

Message:
Logged In: YES 
user_id=21627

Can you please attach the binary to this report?

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Comment By: Chris Rodrigues (nokta_kanto)
Date: 2002-07-19 23:22

Message:
Logged In: YES 
user_id=571002

Here's a screen dump of the error in progress.

I don't know if it makes a difference, but ret111.exe was compiled with 
djgpp.

C:\pulse_prog>type ret111.c
int main() {return 111;}

C:\pulse_prog>python
Python 2.2.1c2 (#33, Mar 26 2002, 13:04:18) [MSC 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.spawnv( os.P_WAIT, r'c:\ret111.exe', [r'c:\ret111.exe'])
111
>>> os.spawnv( os.P_WAIT, r'c:\pulse_prog\ret111.exe', 
[r'c:\pulse_prog\ret111.exe'])
0
>>>


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Comment By: Tim Peters (tim_one)
Date: 2002-07-05 18:46

Message:
Logged In: YES 
user_id=31435

I can't reproduce this using 2.2.1 under Win98SE.  Here's 
a screen dump showing exactly what I did.  Please show us 
exactly what you did.

C:\pulse_prog>type ret111.c
int main() { return 111; }

C:\pulse_prog>cd \python22

C:\Python22>python
Python 2.2.1 (#34, Apr  9 2002, 19:34:33) [MSC 32 bit 
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more 
information.
>>> import os
>>> prog = r"c:\pulse_prog\ret111"
>>> os.spawnv(os.P_WAIT, prog, [prog])
111
>>>


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Comment By: Martin v. Löwis (loewis)
Date: 2002-07-05 07:52

Message:
Logged In: YES 
user_id=21627

Can you please attach the test program to this report?

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