I'm a developer on the matplotlib project, and I am having trouble with the subprocess module on windows (Python 2.4.2 on winXP). No trouble to report with linux. I need to use _subprocess instead of pywin32, but my trouble exists with either option:
import subprocess process = subprocess.Popen(['dir'], stderr=subprocess.STDOUT, stdout=subprocess.PIPE) stat = process.wait() print process.stdout.read() ---------------------------------------------------------------------- Traceback (most recent call last): File "C:\Documents and Settings\Darren\Desktop\subprocess_test.py", line 3, in ? process = subprocess.Popen(['dir'], stderr=subprocess.STDOUT, stdout=subprocess.PIPE)#, stdout=PIPE) File "C:\Python24\lib\subprocess.py", line 533, in __init__ (p2cread, p2cwrite, File "C:\Python24\lib\subprocess.py", line 593, in _get_handles p2cread = self._make_inheritable(p2cread) File "C:\Python24\lib\subprocess.py", line 634, in _make_inheritable DUPLICATE_SAME_ACCESS) TypeError: an integer is required ---------------------------------------------------------------------- If I change my script a bit, I get a different error: import subprocess process = subprocess.Popen(['dir']) stat = process.wait() print process.stdout.read() ---------------------------------------------------------------------- Traceback (most recent call last): File "C:\Documents and Settings\Darren\Desktop\subprocess_test.py", line 3, in ? process = subprocess.Popen(['dir'])#, stderr=subprocess.STDOUT, stdout=subprocess.PIPE)#, stdout=PIPE) File "C:\Python24\lib\subprocess.py", line 542, in __init__ errread, errwrite) File "C:\Python24\lib\subprocess.py", line 706, in _execute_child startupinfo) WindowsError: [Errno 2] The system cannot find the file specified ---------------------------------------------------------------------- Can anyone tell me what I am doing wrong? Thanks, Darren -- http://mail.python.org/mailman/listinfo/python-list