bdist_wheel.py 文件源码

def write_wheelfile(self, wheelfile_base, generator='bdist_wheel (' + wheel.__version__ + ')'):
        from email.message import Message
        msg = Message()
        msg['Wheel-Version'] = '1.0'  # of the spec
        msg['Generator'] = generator
        msg['Root-Is-Purelib'] = str(self.root_is_pure).lower()

        # Doesn't work for bdist_wininst
        impl_tag, abi_tag, plat_tag = self.get_tag()
        for impl in impl_tag.split('.'):
            for abi in abi_tag.split('.'):
                for plat in plat_tag.split('.'):
                    msg['Tag'] = '-'.join((impl, abi, plat))

        wheelfile_path = os.path.join(wheelfile_base, 'WHEEL')
        logger.info('creating %s', wheelfile_path)
        with open(wheelfile_path, 'w') as f:
            Generator(f, maxheaderlen=0).flatten(msg)