I am using Tornado, and in my app I import logging so I can log some information about the server.

I put this:

logging.config.dictConfig(web_LOGGING)
right before:
tornado.options.parse_command_line()
but when I run the server and click any link I get the following error:
Traceback (most recent call last):
  File "/usr/lib/python2.7/logging/__init__.py", line 874, in emit
    stream.write(fs % msg)
AttributeError: 'str' object has no attribute 'write'
Logged from file web.py, line 1946
What is causing this?
I've already changed to another directory to steer clear of namespace conflicts.
                What is the definition of web_LOGGING? My answer is a likely problem, but you need to provide enough information to reproduce; knowing you used dictConfig is not super helpful when we don't know the configuration passed.
– ShadowRanger
                Sep 7 '16 at 5:19
                in handlers i put "stream":"ext"#sys.stdout,i intend to put any info to sys.stdout.while for warning,i want to log into a file,like 'filename': './web_log/rotated.log'..so something wrong with stream here?
– simonchou
                Sep 7 '16 at 5:24
                "stream":  "ext" would definitely be wrong, while "stream": sys.stdout should be fine. Not sure what you mean by "stream":"ext"#sys.stdout
– ShadowRanger
                Sep 7 '16 at 10:07
        https://stackoverflow.com/questions/39361630/python-logging-module-attributeerror-str-object-has-no-attribute-write/39361698#39361698
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