On Thu, Aug 6, 2009 at 3:18 PM, chase pettet <chase...@gmail.com> wrote:
> I am trying to write a script to work our LVS implementation. I want to be
> able to have user do something like this "./script SITE SERVER" and have
> the script look up the ip value of the site on that server and issue the
> command to pull the status from LVS. I am almost there but for some reason
> when I try to pass the site parameter dynamically (the name of the
> dictionary) I keep getting errors about value type. I have two example that
> work where the dictionary name is hard coded to to speak in the script, and
> the value I want to pull is dynamic using sys.argv[1], and one where I'm
> trying to pass the dictionary name and it does not work. I tried to slim
> thse examples down, so hopefully they are helpful:
>
> works #1...
>
> ./script.py t
>
> #!/usr/bin/env python
> site = {"l":"10.1.1.1", "t":"10.1.1.2", "x":"10.1.1.3", "s1":"10.1.1.4",
> "s2":"10.1.1.5", "s3":"10.1.1.6"}
>
> def runBash(cmd):
> p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
> out = p.stdout.read().strip()
> return out
>
> class LVS_Site:
> def show(self, site):
> showsite = "ipvsadm -L -t %s:443" % (site)
> showsiteresult = runBash(showsite)
> return showsiteresult
>
> a = LVS_Site()
> b = site["%s" % (sys.argv[1])]
> c = a.show(b)
> print ""
> print ""
> print ""
> print c
>
> works #2...
>
> ./script.py t
>
> #!/usr/bin/env python
> site = {"l":"10.1.1.1", "t":"10.1.1.2", "x":"10.1.1.3", "s1":"10.1.1.4",
> "s2":"10.1.1.5", "s3":"10.1.1.6"}
>
> def runBash(cmd):
> p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
> out = p.stdout.read().strip()
> return out
>
> class LVS_Site:
> def show(self, site):
> showsite = "ipvsadm -L -t %s:443" % (site)
> showsiteresult = runBash(showsite)
> return showsiteresult
>
> a = LVS_Site()
> z = site
> b = z["%s" % (sys.argv[1])]
> c = a.show(b)
> print ""
> print ""
> print ""
> print c
>
>
> Not working...
>
> ./script.py t site
>
> #!/usr/bin/env python
> site = {"l":"10.1.1.1", "t":"10.1.1.2", "x":"10.1.1.3", "s1":"10.1.1.4",
> "s2":"10.1.1.5", "s3":"10.1.1.6"}
>
> def runBash(cmd):
> p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
> out = p.stdout.read().strip()
> return out
>
> class LVS_Site:
> def show(self, site):
> showsite = "ipvsadm -L -t %s:443" % (site)
> showsiteresult = runBash(showsite)
> return showsiteresult
>
> a = LVS_Site()
> z = sys.argv[2]
> b = b["%s" % (sys.argv[1])]
> c = a.show(b)
> print ""
> print ""
> print ""
> print c
>
> Error:
>
> Traceback (most recent call last):
> File "./python2.py", line 22, in ?
> b = z["%s" % (sys.argv[1])]
> TypeError: string indices must be integers
>
>
> I don't understand why the third one does not work. Thanks for any help!
>
> _______________________________________________
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
>
>
In your code
z = sys.argv[2] which is a string
think you want
b = site[z]
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
