Add check for Python 3.

guppy

@@ -16,7 +16,16 @@
 #
 #    You should have received a copy of the GNU General Public License
 #    along with guppy.  If not, see <http://www.gnu.org/licenses/>.
+
+
+
 import sys
+
+if sys.version_info[0] < 3:
+    print("Error: guppy only works with Python 3+. Please install python 3 and re-try.")
+    exit()
+
+
 import os
 import configparser
 import asyncore
@@ -32,7 +41,6 @@ class main(object):
         print(" \__, |\__,_| .__/| .__/ \__, |")
         print((" |___/      |_|   |_|    |___/  version "+self.version))
         print("")
-
         self.directory = os.getcwd() + '/conf/'
         print(("Settings directory: %s" % self.directory))