[PATCH iptables v3]iptables-test.py : fix python3.

[Shekhar Sharma <shekhar250198@gmail.com>]

This converts the iptables-test.py file to run on both python2 and python3.
The error regarding out.find() has been fixed by
using method .encode('utf-8') in it's argument.


Signed-off-by: Shekhar Sharma <shekhar250198@gmail.com>
---
The version history of this patch is:
v2: change print statments.
v3: add .encode('utf-8') to out.find(). (To solve TypeError)

 iptables-test.py | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/iptables-test.py b/iptables-test.py
index 532dee7..dc5f0ea 100755
--- a/iptables-test.py
+++ b/iptables-test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 #
 # (C) 2012-2013 by Pablo Neira Ayuso <pablo@netfilter.org>
 #
@@ -10,6 +10,7 @@
 # This software has been sponsored by Sophos Astaro <http://www.sophos.com>
 #
 
+from __future__ import print_function
 import sys
 import os
 import subprocess
@@ -45,7 +46,7 @@ def print_error(reason, filename=None, lineno=None):
     '''
     Prints an error with nice colors, indicating file and line number.
     '''
-    print (filename + ": " + Colors.RED + "ERROR" +
+    print(filename + ": " + Colors.RED + "ERROR" +
         Colors.ENDC + ": line %d (%s)" % (lineno, reason))
 
 
@@ -140,7 +141,7 @@ def run_test(iptables, rule, rule_save, res, filename, lineno, netns):
         return -1
 
     # find the rule
-    matching = out.find(rule_save)
+    matching = out.find(rule_save.encode('utf-8'))
     if matching < 0:
         reason = "cannot find: " + iptables + " -I " + rule
         print_error(reason, filename, lineno)
@@ -166,7 +167,7 @@ def execute_cmd(cmd, filename, lineno):
     if cmd.startswith('iptables ') or cmd.startswith('ip6tables ') or cmd.startswith('ebtables ') or cmd.startswith('arptables '):
         cmd = os.path.abspath(os.path.curdir) + "/iptables/" + EXECUTEABLE + " " + cmd
 
-    print >> log_file, "command: %s" % cmd
+    print("command: {}".format(cmd), file=log_file)
     ret = subprocess.call(cmd, shell=True, universal_newlines=True,
         stderr=subprocess.STDOUT, stdout=log_file)
     log_file.flush()
@@ -249,7 +250,7 @@ def run_test_file(filename, netns):
             continue
 
         if len(chain_array) == 0:
-            print "broken test, missing chain, leaving"
+            print("broken test, missing chain, leaving")
             sys.exit()
 
         test_passed = True
@@ -282,7 +283,7 @@ def run_test_file(filename, netns):
     if netns:
         execute_cmd("ip netns del ____iptables-container-test", filename, 0)
     if total_test_passed:
-        print filename + ": " + Colors.GREEN + "OK" + Colors.ENDC
+        print(filename + ": " + Colors.GREEN + "OK" + Colors.ENDC)
 
     f.close()
     return tests, passed
@@ -302,7 +303,7 @@ def show_missing():
     missing = [test_name(i) for i in libfiles
                if not test_name(i) in testfiles]
 
-    print '\n'.join(missing)
+    print('\n'.join(missing))
 
 
 #
@@ -336,7 +337,7 @@ def main():
         EXECUTEABLE = "xtables-nft-multi"
 
     if os.getuid() != 0:
-        print "You need to be root to run this, sorry"
+        print("You need to be root to run this, sorry")
         return
 
     os.putenv("XTABLES_LIBDIR", os.path.abspath(EXTENSIONS_PATH))
@@ -351,7 +352,7 @@ def main():
     try:
         log_file = open(LOGFILE, 'w')
     except IOError:
-        print "Couldn't open log file %s" % LOGFILE
+        print("Couldn't open log file %s" % LOGFILE)
         return
 
     file_list = [os.path.join(EXTENSIONS_PATH, i)
@@ -365,8 +366,7 @@ def main():
             passed += file_passed
             test_files += 1
 
-    print ("%d test files, %d unit tests, %d passed" %
-           (test_files, tests, passed))
+    print("%d test files, %d unit tests, %d passed" % (test_files, tests, passed))
 
 
 if __name__ == '__main__':
-- 
2.17.1