Python3網絡編程在構造流媒體或其他’Content-Type’類型響應接口時發生如下報錯信息：
Traceback (most recent call last):
File "/usr/lib/python3.6/wsgiref/handlers.py", line 138, in run
self.finish_response()
File "/usr/lib/python3.6/wsgiref/handlers.py", line 180, in finish_response
self.write(data)
File "/usr/lib/python3.6/wsgiref/handlers.py", line 279, in write
self._write(data)
File "/usr/lib/python3.6/wsgiref/handlers.py", line 453, in _write
result = self.stdout.write(data)
File "/usr/lib/python3.6/socketserver.py", line 803, in write
self._sock.sendall(b)
ConnectionResetError: [Errno 104] Connection reset by peer
ERROR basehttp 124 "GET /control/v1/video_address?file_path=/fsdata/videos/1.mp4/h264_1.MP4 HTTP/1.1" 500 59
----------------------------------------
Exception happened during processing of request from ('192.168.2.63', 58153)
Traceback (most recent call last):
File "/usr/lib/python3.6/wsgiref/handlers.py", line 138, in run
self.finish_response()
File "/usr/lib/python3.6/wsgiref/handlers.py", line 180, in finish_response
self.write(data)
File "/usr/lib/python3.6/wsgiref/handlers.py", line 279, in write
self._write(data)
File "/usr/lib/python3.6/wsgiref/handlers.py", line 453, in _write
result = self.stdout.write(data)
File "/usr/lib/python3.6/socketserver.py", line 803, in write
self._sock.sendall(b)
ConnectionResetError: [Errno 104] Connection reset by peer
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.6/wsgiref/handlers.py", line 141, in run
self.handle_error()
File "/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py", line 88, in handle_error
super(ServerHandler, self).handle_error()
File "/usr/lib/python3.6/wsgiref/handlers.py", line 368, in handle_error
self.finish_response()
File "/usr/lib/python3.6/wsgiref/handlers.py", line 180, in finish_response
self.write(data)
File "/usr/lib/python3.6/wsgiref/handlers.py", line 274, in write
self.send_headers()
File "/usr/lib/python3.6/wsgiref/handlers.py", line 331, in send_headers
if not self.origin_server or self.client_is_modern():
File "/usr/lib/python3.6/wsgiref/handlers.py", line 344, in client_is_modern
return self.environ['SERVER_PROTOCOL'].upper() != 'HTTP/0.9'
TypeError: 'NoneType' object is not subscriptable
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.6/socketserver.py", line 654, in process_request_thread
self.finish_request(request, client_address)
File "/usr/lib/python3.6/socketserver.py", line 364, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "/usr/lib/python3.6/socketserver.py", line 724, in __init__
self.handle()
File "/usr/local/lib/python3.6/dist-packages/django/core/servers/basehttp.py", line 155, in handle
handler.run(self.server.get_app())
File "/usr/lib/python3.6/wsgiref/handlers.py", line 144, in run
self.close()
File "/usr/lib/python3.6/wsgiref/simple_server.py", line 35, in close
self.status.split(' ',1)[0], self.bytes_sent
AttributeError: 'NoneType' object has no attribute 'split'
----------------------------------------
經測試這個異常不影響程序運行及接口數據的返回，但拋出這麼異常看的我是渾身難受，而且項目日誌也沒必要收集這麼多無用的異常影響其他異常的定位，當然也可以忽略這個異常不收集，但強迫症患者只考慮解如何決這個問題，網上尋找解決方案，大都是一些沒有營養的垃圾內容，最後自己跟進程序看底層源碼，解決流程如下：
首先，根據第一行的提示：
File "C:\Python34\lib\wsgiref\handlers.py", line 138, in run
self.finish_response()
我這裏用的編輯器是pycharm，找到handlers.py文件的138行，按住ctrl點擊文件中的finish_response()方法，
就找到self.finish_response()定義的位置了。根據第二條提示：
File "C:\Python34\lib\wsgiref\handlers.py", line 181, in finish_response
self.write(data)
發現是write方法出現錯誤，再按住ctrl點擊write方法，找到定義write方法的位置，發現第一行就定義了一條報錯：
assert type(data) is bytes, \
"write() argument must be a bytes instance"
對照上面的報錯信息，發現可能是變量data的類型，不是bytes，所以在handlers.py181行代碼self.write(data)上面加一句：
data=data.encode()
修改時會提示，選擇強制修改即可
再次刷新程序，發現所有報錯都沒了，程序正常運行。