python后端写下载文件， 这个时候出现了这个错误
latin-1 codec cant encode characters in position 42-48: ordinal not in range256
怎么办：
查起因： 发现文件名有中文名字， 所以导致错误， 编码是latin-1编码， 所以我们需要解码成unicode在编码成latin-1
先看代码：
这段代码涉及python转码问题， 一定要注意
???????????????FilePathName = self.get_argument("FilePathName", None) #获取文件名 ???????????????FileName = str(FilePathName.split("/")[-1]).strip() ＃ 得到文件名 ???????????????latinFileName = FileName.encode("utf-8").decode("latin1") # 这句很关键， 要解析成latin-1才OK，这样就不会报错class DownFileHandler(downBaseRequestHandler): ???@tornado.gen.coroutine ???def get(self, *args, **kwargs): ???????if self.verifyFlag == 1 and self.status == 0: ???????????status = 2000 ???????????try: ???????????????FilePathName = self.get_argument("FilePathName", None) ???????????????FilePathName = MyBase64.decryption(unquote(FilePathName)) # 这句是解密 ???????????????FileName = str(FilePathName.split("/")[-1]).strip() ???????????????latinFileName = FileName.encode("utf-8").decode("latin1") # 这句很关键， 要解析成latin-1才OK，这样就不会报错 ???????????????newFileName = str(int(time.time())) + "." + FileName.split(".")[1] # 第二种方式就是换一个文件名 ???????????????self.set_header("Content-Type", "application/x-zip-compressed") ???????????????# -----<或者这么写> ----- # ???????????????# self.set_header("Content-Type", "application/octet-stream") ???????????????self.set_header("Content-Disposition", "attachment; filename=%s" % latinFileName) ???????????????f = open(FilePathName, ‘rb‘) ???????????????while True: ???????????????????b = f.read(8096) ???????????????????if not b: ???????????????????????break ???????????????????else: ???????????????????????self.write(b) ???????????????self.flush() ???????????????f.close() ???????????except Exception as e: ???????????????e = FormatErrorCode(e) ???????????????my_log.error(e) ???????????????status = int(e[0]) ???????????????self.write(json.dumps(result(status=status))) ???????????self.finish() ???????else: ???????????self.write(json.dumps(result(status=4005))) ???????????self.finish()latin-1 codec cant encode characters in position 42-48: ordinal not in range256 下载文件时候报错
原文地址：https://www.cnblogs.com/renfanzi/p/9494981.html