setup.py 文件源码

def build_extension(self, ext):
        """ Compile manually the py_mini_racer extension, bypass setuptools
        """
        try:
            if not is_v8_built():
                self.run_command('build_v8')

            self.debug = True
            if V8_PATH:
                dest_filename = join(self.build_lib, "py_mini_racer")
                copy_file(V8_PATH, dest_filename, verbose=self.verbose, dry_run=self.dry_run)
            else:
                build_ext.build_extension(self, ext)

        except Exception as e:
            # Alter message
            err_msg = """py_mini_racer failed to build, ensure you have an up-to-date pip (>= 8.1) to use the wheel instead
            To update pip: 'pip install -U pip'
            See also: https://github.com/sqreen/PyMiniRacer#binary-builds-availability

            Original error: %s"""

            raise Exception(err_msg % repr(e))