I try to create type aliases, like typedef in C (a specially aliases to ctypes objects). This case:
>>> some_type = c_ulong >>> oth_type = c_ulong works in all cases but not with type qualification: >>> t1 = c_ulong # reference to c_ulong, nothing else :( >>> t2 = c_ulong >>> x = t1() >>> y = t2() >>> type(x)==type(y) True This trivial way for typedef doesn't allow to determine real type and it's absolutely right :) >>> t1 = type('t1',(c_ulong,),{}) >>> t2 = type('t2',(c_ulong,),{}) >>> x = t1() >>> y = t2() >>> type(x)==type(y) False The problem: 1st way work in complex using of ctypes (interfacing with some DLLs), but doesn't allow to determine real type! 2st way allows to determine real type, but "access violation reading 0x0000000C'" occurs in some DLL calls! Question: what "warts", errors are in 2nd way (may be reason of access violation)? -- Pavel -- http://mail.python.org/mailman/listinfo/python-list