On 3/12/2011 8:33 AM, Laura Creighton wrote:
The thread with the whole gory details begins here:
http://codespeak.net/pipermail/pypy-dev/2011q1/006958.html
The second, multiplication issue does appears to be the same issue.
Augmenting my previous test:
class C(object):
def __iter__(self):
yield 'yes!'
def __radd__(self, other):
other.append('bug!')
return other
def __rmul__(self, other):
other *= 2
return other
def __index__(self):
return 3
class L(list):
def __iadd__(self, other):
list.__iadd__(self,other)
return self
def __mul__(self, other):
return L(list.__imul__(self,other))
z1, z2, c = [], L(), C()
z1 += c
z2 += c
print(z1, z2, [1]*c, L([1])*c)
>>>
['bug!'] ['yes!'] [1, 1] [1, 1, 1] # PyPy prints ['yes!'], [1, 1, 1]
I opened http://bugs.python.org/issue11477
--
Terry Jan Reedy
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