@property
def cmdline(self):
    output_file_base = self.inputs.output_file_base
    orig_cmdline = super(Blur, self).cmdline
    if isdefined(output_file_base):
        return orig_cmdline
    else:
        return ('%s %s' % (orig_cmdline, self._gen_output_base()))
@property
def cmdline(self):
    output_file_base = self.inputs.output_file_base
    orig_cmdline = super(Blur, self).cmdline
    if isdefined(output_file_base):
        return orig_cmdline
    else:
        return ('%s %s' % (orig_cmdline, self._gen_output_base()))