add 'kill' to jobctrl

IPython/Extensions/jobctrl.py

@@ -1,56 +1,61 b''
 """ Preliminary "job control" extensions for IPython 
 
 requires python 2.4 (or separate 'subprocess' module
 
 At the moment this is in a very "unhelpful" form, will be extended in the future.
 
 Usage:
 
 [ipython]|2> import jobctrl
 [ipython]|3> &ls
          <3> <jobctrl.IpyPopen object at 0x00D87FD0>
 [ipython]|4> _3.go
 -----------> _3.go()
 ChangeLog
 IPython
 MANIFEST.in
 README
 README_Windows.txt
 
 ...                     
 """                     
 
 from subprocess import Popen,PIPE
+import os
 
 from IPython import genutils
 
 import IPython.ipapi
 
 class IpyPopen(Popen):
     def go(self):
         print self.communicate()[0]
     def __repr__(self):
-        return '<IPython job "%s">' % self.line
+        return '<IPython job "%s" PID=%d>' % (self.line, self.pid)
 
+    def kill(self):
+        assert os.name == 'nt' # xxx add posix version 
+        os.system('taskkill /PID %d' % self.pid)
+                  
 def startjob(job):
-    p = IpyPopen(job, stdout=PIPE)
+    p = IpyPopen(job, stdout=PIPE, shell = False)
     p.line = job
     return p
 
 def jobctrl_prefilter_f(self,line):    
     if line.startswith('&'):
         pre,fn,rest = self.split_user_input(line[1:])
         
         line = ip.IP.expand_aliases(fn,rest)
         return '_ip.startjob(%s)' % genutils.make_quoted_expr(line)
 
     raise IPython.ipapi.TryNext
 
 def install():
     global ip
     ip = IPython.ipapi.get()
     # needed to make startjob visible as _ip.startjob('blah')
     ip.startjob = startjob
     ip.set_hook('input_prefilter', jobctrl_prefilter_f)     
     
 install()
  No newline at end of file