LinuxQuestions.org - [SOLVED] Having some trouble sending data from python script to other function

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Having some trouble sending data from python script to other function

Hello,

I'm trying to send the output of a python script to another command. I am trying to do this within the python script itself but can also write a bash script if someone can direct me to the commands I should be using.

This is the part of the python script Im having trouble with. Im trying to push the printed number to the qbus command.

Code:

# Now either print out the forwarded port or an error message.

if "port" in resp:

    print resp["port"]

import os

os.system("qdbus org.ktorrent.ktorrent /settings setPort ["port"] : qdbus org.ktorrent.ktorrent /settings apply")

Can anyone see what Im doing wrong with this? The rest of the python script works as it should if I take out the part from import os.

probably this:

Code:

os.system("qdbus org.ktorrent.ktorrent /settings setPort [%s] : qdbus org.ktorrent.ktorrent /settings apply" % ( resp["port"] ))

but I'm not really sure. What is the desired command?

Quote:

Originally Posted by pan64 (Post 4851933)

probably this:

Code:

os.system("qdbus org.ktorrent.ktorrent /settings setPort [%s] : qdbus org.ktorrent.ktorrent /settings apply" % ( resp["port"] ))

but I'm not really sure. What is the desired command?

Thank you but its still not doing what I want.

Its not imputing the result of the python script to the command and my ktorrent port is coming out to 0.

Here is the full python script(which works perfectly without my extra part):

Code:

#!/usr/bin/env python



import urllib

import urllib2

import json

import sys

import netifaces



# put your VPN username and password below

YOUR_USERNAME = "xxxxx"

YOUR_PASSWORD = "xxxxx"



# This should be a long random string, or something that no one else is going

# to be able to guess.  Don't share this amongst multiple computers on the

# same VPN account.  If you have more than one computer, use a different client

# ID for each.  I recommende the output of the Linux "uuidgen" command, but

# you can really just use whatever.

YOUR_CLIENT_ID = "xxxxx"



# The interface your VPN uses.  We use this to look up your local IP, as

# required by the port forwarding API.  Probably you won't have to change this

# unless you really know what you're doing (e.g., if you have more than one

# VPN tunnel on the same system or something)

VPN_IFACE = "tun0"



# This is the API URL.  Don't change this.

API_URL = "https://www.privateinternetaccess.com/vpninfo/port_forward_assignment"



# Look up the local IP from the VPN interface

try:

    local_ip =  netifaces.ifaddresses(VPN_IFACE)[netifaces.AF_INET][0]["addr"]

except ValueError,e:

    print "No such interface.  Are you connected?"

    sys.exit(-1)



# Make the API request to the webserver

request = urllib2.Request(API_URL, urllib.urlencode(

        {

            "user":YOUR_USERNAME,

            "pass":YOUR_PASSWORD,

            "client_id":YOUR_CLIENT_ID,

            "local_ip":local_ip

            }

        ))



# Gather the (possibly multi-line) JSON response and create a python dict

# out of it

response = ""

for line in urllib2.urlopen(request).readlines():

    response += line

resp =  json.loads(response)



# Now either print out the forwarded port or an error message.

if "port" in resp:

    print resp["port"]

    import os

    os.system("qdbus org.ktorrent.ktorrent /settings setPort [%s] ; qdbus org.ktorrent.ktorrent /settings apply" % ( resp["port"] ))

elif "error" in resp:

    print "Error: %s" % resp["error"]

    sys.exit(-1)

else:

    print "Error: no idea what failed!"

    sys.exit(-2)

After I run this python scrip without my line added, I get a number for my port. I can either enter it manualy within ktorrent or use the commands:

Code:

$ qdbus org.ktorrent.ktorrent /settings setPort (number I get from python script)

$ qdbus org.ktorrent.ktorrent /settings apply

thanks to Diantre.

I want to have this command run automatically within the python script.

I see. Try to remove [ and ] around the port number:

Code:

os.system("qdbus org.ktorrent.ktorrent /settings setPort %s; qdbus org.ktorrent.ktorrent /settings apply" % ( resp["port"] ))

also you can try to add echo to test how it works (and modify it if required):
os.system("echo qdbus org.....

Quote:

Originally Posted by pan64 (Post 4852578)

I see. Try to remove [ and ] around the port number:

Code:

os.system("qdbus org.ktorrent.ktorrent /settings setPort %s; qdbus org.ktorrent.ktorrent /settings apply" % ( resp["port"] ))

also you can try to add echo to test how it works (and modify it if required):
os.system("echo qdbus org.....

Thank you soo much. It works perfectly now.

If anyone does a google search for it. This is the python script I am using for Private internet access and Ktorrent to get my ports.

I did not write this python script. It was found on the private internet access help forum but now it will automatically change the port number for Ktorrent.

for the xxxxxx put in your own information and you need netfaces installed with the python bindings.

Code:

#!/usr/bin/env python



import urllib

import urllib2

import json

import sys

import netifaces



# put your VPN username and password below

YOUR_USERNAME = "xxxxx"

YOUR_PASSWORD = "xxxxx"



# This should be a long random string, or something that no one else is going

# to be able to guess.  Don't share this amongst multiple computers on the

# same VPN account.  If you have more than one computer, use a different client

# ID for each.  I recommende the output of the Linux "uuidgen" command, but

# you can really just use whatever.

YOUR_CLIENT_ID = "1981981981981981981212138"



# The interface your VPN uses.  We use this to look up your local IP, as

# required by the port forwarding API.  Probably you won't have to change this

# unless you really know what you're doing (e.g., if you have more than one

# VPN tunnel on the same system or something)

VPN_IFACE = "tun0"



# This is the API URL.  Don't change this.

API_URL = "https://www.privateinternetaccess.com/vpninfo/port_forward_assignment"



# Look up the local IP from the VPN interface

try:

    local_ip =  netifaces.ifaddresses(VPN_IFACE)[netifaces.AF_INET][0]["addr"]

except ValueError,e:

    print "No such interface.  Are you connected?"

    sys.exit(-1)



# Make the API request to the webserver

request = urllib2.Request(API_URL, urllib.urlencode(

        {

            "user":YOUR_USERNAME,

            "pass":YOUR_PASSWORD,

            "client_id":YOUR_CLIENT_ID,

            "local_ip":local_ip

            }

        ))



# Gather the (possibly multi-line) JSON response and create a python dict

# out of it

response = ""

for line in urllib2.urlopen(request).readlines():

    response += line

resp =  json.loads(response)



# Now either print out the forwarded port or an error message.

if "port" in resp:

    print resp["port"]

    import os

    os.system("qdbus org.ktorrent.ktorrent /settings setPort %s; qdbus org.ktorrent.ktorrent /settings apply" % (

resp["port"] ))

elif "error" in resp:

    print "Error: %s" % resp["error"]

    sys.exit(-1)

else:

    print "Error: no idea what failed!"

    sys.exit(-2)

Thank you everyone on LinuxQuestions.org