On Mar 18, 2:18 am, Duncan Booth <duncan.bo...@invalid.invalid> wrote: > Terry Reedy <tjre...@udel.edu> wrote: > > On 3/17/2011 10:00 PM, Terry Reedy wrote: > >> On 3/17/2011 8:24 PM, J Peyret wrote: > >>> This gives a particularly nasty abend in Windows - "Python.exe has > >>> stopped working", rather than a regular exception stack error. I've > >>> fixed it, after I figured out the cause, which took a while, but > maybe > >>> someone will benefit from this. > > >>> Python 2.6.5 on Windows 7. > > >>> class Foo(object): > >>> pass > > >>> Foo.__repr__ = Foo.__str__ # this will cause an abend. > > >> 2.7.1 and 3.2.0 on winxp, no problem, interactive intepreter or IDLE > >> shell. Upgrade? > > > To be clear, the above, with added indent, but with extra fluff > (fixes) > > removed, is exactly what I ran. If you got error with anything else, > > please say so. Described behavior for legal code is a bug. However, > > unless a security issue, it would not be fixed for 2.6. > > On Windows, I can replicate this with Python 2.7, Python 3.1.2, and > Python 3.2. Here's the exact script (I had to change the print to be > compatible with Python 3.2): > > -------------------- bug.py -------------- > class Foo(object): > pass > #def __str__(self): #if you have this defined, no abend > # return "a Foo" > > Foo.__repr__ = Foo.__str__ # this will cause an abend. > #Foo.__str__ = Foo.__repr__ #do this instead, no abend > > foo = Foo() > print(str(foo)) > > ------------------------------------------ > > for Python 3.2 the command: > C:\Temp>c:\python32\python bug.py > > generates a popup: > > python.exe - Application Error > The exception unknown software exception (0xc0000fd) occurred in the > application at location 0x1e08a325. > > Click on OK to terminate the program > Click on CANCEL to debug the program > > So it looks to me to be a current bug.
Multiple people reproduce a Python hang/crash yet it looks like no one bothered to submit a bug report.... I observed the same behavior (2.6 and 3.2 on Linux, hangs) and went ahead and submitted a bug report. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list