frontend.py 文件源码

def finalize_options(self):
        if not self.input_file:
            raise DistutilsOptionError('you must specify the input file')
        if not self.output_file and not self.output_dir:
            raise DistutilsOptionError('you must specify the output file or '
                                       'directory')
        if self.output_file and not self.locale:
            raise DistutilsOptionError('you must specify the locale')
        if self.no_wrap and self.width:
            raise DistutilsOptionError("'--no-wrap' and '--width' are mutually "
                                       "exclusive")
        if not self.no_wrap and not self.width:
            self.width = 76
        elif self.width is not None:
            self.width = int(self.width)
        if self.no_fuzzy_matching and self.previous:
            self.previous = False