Server.satistics failing for wsgiserver3.py

[ghost]

Originally reported by: Anonymous

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When server.statistics is set to collect statistics with the inbuilt wsgiserver, we see the following exception:

Exception in thread CP Server Thread-3:
[20/Apr/2016:14:21:56] ENGINE Bus STARTED
Traceback (most recent call last):
File "C:\Python34\lib\threading.py", line 911, in _bootstrap_inner
self.run()
File "C:\Users\devbevanl\cherryapi\venv\lib\site-packages\cherrypy\wsgiserver\wsgiserver3.py", line 1256, in run
self.bytes_read += self.conn.rfile.bytes_read
AttributeError: 'BufferedReader' object has no attribute 'bytes_read'

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• Bitbucket: https://bitbucket.org/cherrypy/cherrypy/issue/1414

[polotek]

Is there a plan to fix this? It looks like the problem is that BufferedReader is a wrapper around a connection and doesn't have the bytes_read property. I could think of a couple of ways to approach this, and I'm willing to work up a PR. Would you accept it? Any guidance is appreciated.

[webknjaz]

Hello,

First of all it would be nice to see minimal snippet for reproducing the issue. Keep in mind, that now wsgiserver3.py and wsgiserver2.py are megred into a single module working under both Python 2 and Python 3. Please confirm that this issue still exists in supported Python 3 environment for the latest CherryPy version.

Second, if the problem is still worth fixing it, PR should contain:

• Documentation, describing the feature (as currently it's not well-documented)
• Bugfix itself
• Tests proving it works for all supported Python versions (2.7-3.6)

Finally, we'll point out any issues in your PR to let you fix them before approval and there are a couple of external checks (like Travis CI) helping you to get an idea whether you break anything with your PR.