Added note to example

oschwald · oschwald · commit d2d5298f4406 · 2014-03-21T14:25:28.000-07:00
diff --git a/examples/city_charset.py b/examples/city_charset.py
@@ -1,5 +1,7 @@
 #!/usr/bin/python
 
+# This example is only for Python 2. In Python 3, all returned strings are
+# unicode.
 import GeoIP
 
 # open the citydatabase. All cities return in iso-8859-1 by default
