New submission from Joseph Armbruster:
I was wondering what would happen, so I tried this out for the heck of
it with:
Python 3.0a2 (py3k:59572M, Dec 19 2007, 15:54:07) [MSC v.1500 32 bit
(Intel)]
on win32
class a(int):
def __new__(cls,number):
return int.__new__(cls,number)
for x in range(0,a(5)):
print(x)
This resulted in a:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "a.py", line 5, in <module>
for x in range(0,a(5)):
SystemError: ..\Objects\longobject.c:400: bad argument to internal
function
[41030 refs]
It looks like the rangeobject performs a FitsInLong test on each of
the parameters to range, which uses the function
_PyLong_FitsInLong(PyObject *vv) within longobject.c. In tern, this
performs a typecheck: #define PyLong_CheckExact(op) (Py_TYPE(op) ==
&PyLong_Type) that fails.
----------
components: Interpreter Core
messages: 58852
nosy: JosephArmbruster
severity: normal
status: open
title: integer subclass range behavior
type: crash
versions: Python 3.0
__________________________________
Tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue1666>
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