Python3 support to gobgp tests

This PR removes dependencies on old Fabric version, as it's not
supported by Python3.

The current Fabric versions don't support the colors and indent
used previously, so we found substitute methods from other
libraries and defined these in the library files.

The local function from fabric is now just a wrapper to invoke's
run function. All the files were processed through 2to3 command.

All the tests were executed and we don't see any difference on
the outputs when running Python2 or Python3.

The creation of gobgp container is removed from base.py into
fabfile.py, in order to comply with Fabric2 changes and simplify
dependencies.

1 files changed, 2 insertions, 2 deletions

diff --git a/test/scenario_test/addpath_test.py b/test/scenario_test/addpath_test.py
index 2d71554b..c8a8491b 100644
--- a/test/scenario_test/addpath_test.py
+++ b/test/scenario_test/addpath_test.py
@@ -18,12 +18,12 @@ import time
 import unittest
 
 import nose
-from fabric.api import local
 
 from lib import base
 from lib.base import (
     BGP_FSM_ESTABLISHED,
     assert_several_times,
+    local,
 )
 from lib.gobgp import GoBGPContainer
 from lib.exabgp import ExaBGPContainer
@@ -252,7 +252,7 @@ class GoBGPTestBase(unittest.TestCase):
 if __name__ == '__main__':
     output = local("which docker 2>&1 > /dev/null ; echo $?", capture=True)
     if int(output) is not 0:
-        print "docker not found"
+        print("docker not found")
         sys.exit(1)
 
     nose.main(argv=sys.argv, addplugins=[OptionParser()],