[Tutor] using popen(n) to intercept stdout
Tim Johnson
tim at johnsons-web.com
Thu Feb 16 04:51:27 CET 2006
Hi:
I've got a question about popen2.
Consider the following code: (on linux)
import popen2
fin, fout = popen2.popen2("man nothere")
## interpreter outputs the following:
No manual entry for nothere
The following queries of the returned file objects
give the following:
>>> fin
<open file '<fdopen>', mode 'r' at 0x404935e0>
>>> fout
<open file '<fdopen>', mode 'w' at 0x401758a0>
>>> fin.read()
''
Question:
How do I intercept the first response?
I.E. How do I get "No manual entry for nothere"
into a variable?
The object is to call another process on the same machine and capture
the output of that process, assuming that the child process is writing
to stdout.
thanks
tim
--
Tim Johnson <tim at johnsons-web.com>
http://www.alaska-internet-solutions.com
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