count strangeness

[James Stroud]

tal 65% python2.7
Python 2.7.1 (r271:86832, May 21 2011, 22:52:14)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
py> class C(object):
...   def __init__(self):
...     self.data = []
...   def doit(self, count=0):
...     for c in self.data:
...       count += c.doit(count)
...     count += 1
...     print count
...     return count
...
py> c = C()
py> c.data.extend([C() for i in xrange(10)])
py> c.doit()
1
2
4
8
16
32
64
128
256
512
1024
1024



WTF?


James