issue #477: Python 2.5 needs next() polyfill too.

mitogen/core.py

@@ -147,9 +147,12 @@ else:
 
 AnyTextType = (BytesType, UnicodeType)
 
-if sys.version_info < (2, 5):
+try:
+    next
+except NameError:
     next = lambda it: it.next()
 
+
 #: Default size for calls to :meth:`Side.read` or :meth:`Side.write`, and the
 #: size of buffers configured by :func:`mitogen.parent.create_socketpair`. This
 #: value has many performance implications, 128KiB seems to be a sweet spot.

mitogen/parent.py

@@ -63,6 +63,12 @@ from mitogen.core import b
 from mitogen.core import LOG
 from mitogen.core import IOLOG
 
+try:
+    next
+except NameError:
+    # Python 2.4/2.5
+    from mitogen.core import next
+
 
 itervalues = getattr(dict, 'itervalues', dict.values)