That's by using the P3/P4 classes not the function. the function does not
provide wait() call, it simply does it for you by default.
Jim
On 7/3/07, Robert Rawlins - Think Blue <[EMAIL PROTECTED]>
wrote:
Hello guys,
Quite a simple one I'm hoping. I've got a process that I run using popen
which writes to a file, I'm then going to read the file and parse its
contents. However, getting the application to wait until the process is
complete and finished writing before it reads and parses the file is
becoming complicated.
Popen is meant to have a wait() function along with a poll() function
(according to the docs), both of which can be used to make the app wait for
the process to finished, but for some reason I can't get them working, when
I try this:
Import popen2
Process = popen2.popen4('This is my command to run from
cmd')
Process.wait()
f = open('path/to/output/file.txt')
new = f.read()
f.close()
It throws back the following error to me:
push.wait()
AttributeError: 'tuple' object has no attribute 'wait'
Which is fair enough as popen4 returns a tuple containing the output
streams from the cmd command, but how the hell can I have it wait so I can
read the physical files?
I'll be interested to hear your thoughts guys,
Rob
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Yongjian (Jim) Xu
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