Python 3 support.

diff --git a/bulletml/parser.py b/bulletml/parser.py
index de3e817..2ad648c 100644 (file)
--- a/bulletml/parser.py
+++ b/bulletml/parser.py
@@ -14,9 +14,12 @@ import math
 from xml.etree.ElementTree import ElementTree
 
 try:
 from xml.etree.ElementTree import ElementTree
 
 try:

-    from cStringIO import StringIO
+    from io import StringIO

 except ImportError:
 except ImportError:

-    from StringIO import StringIO
+    try:
+        from cStringIO import StringIO
+    except ImportError:
+        from StringIO import StringIO

 
 from bulletml.errors import Error
 from bulletml.expr import NumberDef, INumberDef
 
 from bulletml.errors import Error
 from bulletml.expr import NumberDef, INumberDef


@@ -524,7 +527,7 @@ class BulletML(object):
     @classmethod
     def FromDocument(cls, source):
         """Return a BulletML instance based on a string or file-like."""
     @classmethod
     def FromDocument(cls, source):
         """Return a BulletML instance based on a string or file-like."""

-        if isinstance(source, (str, unicode)):
+        if not hasattr(source, 'read'):

             source = StringIO(source)
 
         tree = ElementTree()
             source = StringIO(source)
 
         tree = ElementTree()


@@ -564,7 +567,7 @@ class BulletML(object):
     @property
     def top(self):
         """Get a list of all top-level actions."""
     @property
     def top(self):
         """Get a list of all top-level actions."""

-        return [dfn for name, dfn in self.actions.iteritems()
+        return [dfn for name, dfn in self.actions.items()

                 if name and name.startswith("top")]
 
     def __repr__(self):
                 if name and name.startswith("top")]
 
     def __repr__(self):