NEWBIE: Extending Python with C

[Wolfgang Strobl]

Alex Martelli <aleax at aleax.it>:

>This is more or less the end of the line in terms of what
>os.popen can offer -- due to buffering and suchlike there's
>no practical way for python to drive BOTH standard input
>and standard-output of another external program.

Well, the following snippet, driving nslookup.exe on W2K works for me: 

import sys,os
print sys.version
popen2=os.popen2
i,o=popen2("nslookup","t")
def prnt(f):
    print "(---"
    c=None
    while c!=">":
        c=f.read(1)
        sys.stdout.write(c)
    print "---)"
prnt(o)
while(1):
    cmd=raw_input()
    if cmd=="stop":
        i.write("exit\n")
        break
    print "cmd:",cmd
    i.write(cmd+"\n")
    prnt(o)
print "feddich"


C:\e\littlepython>cmddriver.py
2.2.1 (#34, Apr 15 2002, 09:51:39) [MSC 32 bit (Intel)]
(---
Standardserver:  www-proxy.BN1.srv.t-online.de
Address:  212.185.249.50

>---)
www.python.org
cmd: www.python.org
(---
 Server:  www-proxy.BN1.srv.t-online.de
Address:  212.185.249.50

Name:    fang.python.org
Address:  194.109.137.226
Aliases:  www.python.org

>---)
stop
feddich





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