类似字节的对象不是'str'

Question

类似字节的对象不是'str'

我正在尝试为Flask创建一个本地HTTP服务器.

服务器启动成功,但当我尝试在Web浏览器中运行localhost:5000时,我收到此错误

class webserverhandler(BaseHTTPRequestHandler):

def do_GET(self):
    try:
        if self.path.endswith("/"):
            self.send_response(200)
            self.send_header('Content-Type','text/html')
            self.end_headers()

            output=""
            output+="<html><body>Hello</body></html>"

            self.wfile.write(output)
            print (output)
            return

    except IOError:
        self.send_error(404,"File Not Found %s" % self.path)


def main():
try:
    port=5000
    server=HTTPServer(('',port),webserverhandler)
    print ("webserver running on %s" % port)
    server.serve_forever()


except KeyboardInterrupt:
    server.socket.close()

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- - - - - - - - - - - - - - - - - 错误 - - - - - - - - --------------------------

webserver running on 5000
127.0.0.1 - - [11/Feb/2017 17:59:36] "GET / HTTP/1.1" 200 -
Exception happened during processing of request from ('127.0.0.1', 54027)
Traceback (most recent call last):
File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 317, in _handle_request_noblock
 self.process_request(request, client_address)
File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 348, in process_request
 self.finish_request(request, client_address)
File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 361, in finish_request
 self.RequestHandlerClass(request, client_address, self)
File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 696, in __init__
 self.handle()
File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\http\server.py", line 418, in handle
 self.handle_one_request()
File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\http\server.py", line 406, in handle_one_request
method()
File "webserver.py", line 14, in do_GET
 self.wfile.write(output)
File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 775, in write
 self._sock.sendall(b)
TypeError: a bytes-like object is required, not 'str'

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有人可以帮帮我吗？

Answer 1

sch*_*ggl 5

看来您使用的是Python3，其中字符串文字str默认是unicode ( ) 对象。使用 -b前缀

output = b""
output += b"<html><body>Hello</body></html>"

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创建一个bytes- 对象。

Answer 2

Chi*_*xus 5

您可以将output变量编码为bytes_object如下所示:

self.wfile.write(output.encode())

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