Blocking ctrl-c to os.popen() or os.system()
Chad Netzer
cnetzer at mail.arc.nasa.gov
Sat Jan 4 22:31:29 EST 2003
On Saturday 04 January 2003 14:00, Sandeep Gupta wrote:
> I am executing a command from python via os.popen(). While the
> command is executing, if I type ctrl-c, the command receives the
> interrupt.
What is your system? On Linux, with a trivial (and perhaps foolish) example
it seems that the Python interpreter does indeed get the ctrl-c:
~~~~~~~~~~~~~~~~~~~~~~~~
import os
import time
if __name__ == '__main__':
cmd_str = "sleep 20"
print 'Running "%s"' % cmd_str
os.popen2( cmd_str )
print "Python now sleeping for 20 seconds."
try:
time.sleep(20)
except KeyboardInterrupt:
print "ctrl-c was pressed"
~~~~~~~~~~~~~~~~~~~~~~~~
$ python popen_test.py
Running "sleep 20"
Python now sleeping for 20 seconds.
ctrl-c was pressed
Note - I pressed ctrl-c to get that result. :)
--
Bay Area Python Interest Group - http://www.baypiggies.net/
Chad Netzer
cnetzer at mail.arc.nasa.gov
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