This is documentation for an old release of SciPy (version 0.10.1). Read this page in the documentation of the latest stable release (version 1.15.0).
errprint({flag}) sets the error printing flag for special functions (from the cephesmodule). The output is the previous state. With errprint(0) no error messages are shown; the default is errprint(1). If no argument is given the current state of the flag is returned and no change occurs.