On Oct 8, 7:21 pm, greg <[EMAIL PROTECTED]> wrote: > Terry Reedy wrote: > > str.find is an historical anomaly that should not be copied. It > > was(is?) a wrapper for C's string find function. C routinely uses -1 to > > mean None for functions statically typed to return ints. The Python > > version logically should return None and usually does for other functions. > ... > [I]t can > be inconvenient having a function that returns different > types under different circumstances. ...
No. It has precedent and there is no cost to convenience in pure Python. Perhaps you are passing the result straight to a C extension, and parsing it straight to integer, but I can't attest to how common that use case is. -- http://mail.python.org/mailman/listinfo/python-list
