New submission from Xiaoling Bao <xiaoling...@google.com>:

This is about HTTP server library (found on Windows with python 3.9, not sure 
other platforms).

In file Lib\http\server.py, we define:
class BaseHTTPRequestHandler(...):
  def log_message(self, format, *args):
    sys.stderr.write(...)

In certain cases, sys.stderr could be None and thus this function call will 
throw exception. My use case: I created an XMLRPC server 
(SimpleXMLRPCRequestHandler derives from BaseHTTPRequestHandler) within a 
Windows service. I guess with that combination, sys.stderr will be None. When 
this issue happens, the client got empty response and not much error log for 
debugging.

I can upload sample source code files if needed.

----------
components: Library (Lib)
messages: 399423
nosy: xiaolingbao
priority: normal
severity: normal
status: open
title: HTTP request handler should check sys.stderr for None before use for 
logging
versions: Python 3.9

_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue44894>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

Reply via email to