Message671

os.popen, os.popen2, os.popen3, os.popen4 do not work.  
Error response is:  
   
Traceback (innermost last):  
  File "uniquefile-popen.py", line 20, in ?  
AttributeError: class 'org.python.modules.os' has no  
attribute 'popen'  
  
importing popen and using popen.popen[234] results in  
pipe being undefindedd in modules.os  
  
Running under Linux - Mandrake 8.2 using  
j2sdk1.3.1-02b-FCS (blackdown) with jython 2.1