On Feb 19, 9:58 pm, Chris Rebert <c...@rebertia.com> wrote: > On Thu, Feb 19, 2009 at 5:01 AM, Barak, Ron <ron.ba...@lsi.com> wrote: > > Hi, > > > I have a class derived from two parents (in blue below), which gives me the > > following error: > > > $ python -u ./failover_pickle_demo09.py > > Traceback (most recent call last): > > File "./failover_pickle_demo09.py", line 291, in <module> > > class ListControl(wx.Frame, CopyAndPaste): > > TypeError: Error when calling the metaclass bases > > metaclass conflict: the metaclass of a derived class must be a > > (non-strict) subclass of the metaclasses of all its bases > > Googling suggested I should add > > from noconflict import classmaker > > and > > > __metaclass__=classmaker() > > to this class. > > > However, I don't seem able to find where to get the noconflict module from. > > > Do any of you where noconflict could be downloaded/installed from ?
It refers to this cookbook recipe: http://code.activestate.com/recipes/204197/ See also the printed cookbook: http://books.google.it/books?id=1Shx_VXS6ioC&pg=PA786&lpg=PA786&dq=python+cookbook+noconflict&source=bl&ots=BB413AZ8R7&sig=cnAB-E9rNFolHBEZQTIm_d4Mj3o&hl=it&ei=GT2eSfCtBdWa_gadppHYCw&sa=X&oi=book_result&resnum=2&ct=result#PPA786,M1 However, there is no module to download, and this is on purpose: instead of blindly apply a "fix" one should understand what the conflict is: then it is quite easy to solve it by hand. The recipe discussion explains it all. -- http://mail.python.org/mailman/listinfo/python-list
