Hello
I'm using wexpect to access various programs such as plink, cygwin and other
command line tools in windows. The code works fine when the python interpreter
is launched from a console window, but when I launch it through any other
process (for instance, a scheduler for automation of certain tasks) I get an
exception. The spawn call for creating a child process to the python process
works (and really does spawn the child process), but as soon as I do an
expect() call the following exception occurs:
File "...\expect\wexpect.py", line 1330, in expect
return self.expect_list(compiled_pattern_list, timeout, searchwindowsize)
File "...\expect\wexpect.py", line 1344, in expect_list
return self.expect_loop(searcher_re(pattern_list), timeout,
searchwindowsize)
File "...\expect\wexpect.py", line 1397, in expect_loop
c = self.read_nonblocking (self.maxread, timeout)
File "...\expect\wexpect.py", line 1771, in read_nonblocking
s = self.wtty.read_nonblocking(timeout, size)
File "...\expect\wexpect.py", line 2149, in read_nonblocking
self.switchBack()
File "...\expect\wexpect.py", line 1975, in switchBack
FreeConsole()
error: (87, 'FreeConsole', 'The parameter is incorrect.')
A closer look reveals that line 2149 is the exception handling of another error
thrown:
Traceback (most recent call last):
File "...\expect\wexpect.py", line 2135, in read_nonblocking
self.switchBack()
File "...\expect\wexpect.py", line 1976, in switchBack
AttachConsole(self.__parentPid)
error: (6, 'AttachConsole', 'The handle is invalid.')
The invalid handle error seems to be related to the fact that I'm not launching
python.exe from a console but from another process, can it be related to issue
1124861 (http://bugs.python.org/issue1124861)? Do I need to create different
stdin and stdout or spawn the child process in any other way from wexpect? Are
there any other ways of solving this problem?
The wexpect code used can be found at:
http://wstein.org/home/goreckc/sage/wexpect/wexpect.py
If this is not the correct mailing list, I apologize and hope that you can show
me where to post my question.
Olof Rutgersson
System Test Engineer
Xelerated AB
Olof Palmes Gata 29
SE-111 22 Stockholm
Sweden
_______________________________________________
python-win32 mailing list
[email protected]
http://mail.python.org/mailman/listinfo/python-win32
