[pypy-commit] pypy stdlib-2.7.8: hack partial so test_functools passes

[bdkearns]

Author: Brian Kearns <bdkearns at gmail.com>
Branch: stdlib-2.7.8
Changeset: r73053:f3332cf0c172
Date: 2014-08-24 17:50 -0400
http://bitbucket.org/pypy/pypy/changeset/f3332cf0c172/

Log:	hack partial so test_functools passes

diff --git a/lib_pypy/_functools.py b/lib_pypy/_functools.py
--- a/lib_pypy/_functools.py
+++ b/lib_pypy/_functools.py
@@ -16,6 +16,11 @@
         self._args = args
         self._keywords = keywords or None
 
+    def __delattr__(self, key):
+        if key == '__dict__':
+            raise TypeError("a partial object's dictionary may not be deleted")
+        object.__delattr__(self, key)
+
     @property
     def func(self):
         return self._func
diff --git a/pypy/module/test_lib_pypy/test_functools.py b/pypy/module/test_lib_pypy/test_functools.py
--- a/pypy/module/test_lib_pypy/test_functools.py
+++ b/pypy/module/test_lib_pypy/test_functools.py
@@ -25,3 +25,8 @@
     partial = _functools.partial(object)
     with pytest.raises((TypeError, AttributeError)):
         partial.func = sum
+    with pytest.raises(TypeError) as exc:
+        del partial.__dict__
+    assert str(exc.value) == "a partial object's dictionary may not be deleted"
+    with pytest.raises(AttributeError):
+        del partial.zzz