Test failures with Python 3.3

[Arfrever Frehtes Taifersar Arahesis]

4 tests always fail with Python 3.3.
(Test results from zope.proxy trunk.)

======================================================================
FAIL: test___repr__ (zope.proxy.tests.test_proxy.ProxyBaseTestCase)
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Traceback (most recent call last):
  File "/tmp/zope.proxy/src/zope/proxy/tests/test_proxy.py", line 94, in test___repr__
    self.assertTrue(repr(p).startswith('<function _foo'))
AssertionError: False is not true

======================================================================
FAIL: test___str__ (zope.proxy.tests.test_proxy.ProxyBaseTestCase)
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Traceback (most recent call last):
  File "/tmp/zope.proxy/src/zope/proxy/tests/test_proxy.py", line 100, in test___str__
    self.assertTrue(str(p).startswith('<function _foo'))
AssertionError: False is not true

======================================================================
FAIL: test___repr__ (zope.proxy.tests.test_proxy.PyProxyBaseTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/zope.proxy/src/zope/proxy/tests/test_proxy.py", line 94, in test___repr__
    self.assertTrue(repr(p).startswith('<function _foo'))
AssertionError: False is not true

======================================================================
FAIL: test___str__ (zope.proxy.tests.test_proxy.PyProxyBaseTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/zope.proxy/src/zope/proxy/tests/test_proxy.py", line 100, in test___str__
    self.assertTrue(str(p).startswith('<function _foo'))
AssertionError: False is not true

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[Arfrever Frehtes Taifersar Arahesis (arfrever-fta)]

This bug was fixed in r128403. Fix was released in zope.proxy-4.0.1.