roundup.cgi.actions.ExportCSVAction broken?

I'm running the roundup tip and trying to export to a CSV while being in the home page of a tracker. In the config.ini file I set web.debug=yes. The error I get is:


  TypeError: byte string value expected, value of type str found


It is in the write method of the Writer class in roundup/cgi/wsgi_handler.py. I'm running Python 3.5.2. The data being written is a string:


'title,priority,activity,mdx_id,specimen_description,activity,assignedto,reviewedby,keyword\r\n'


I attached the HTML for the stack trace. I had to compress it using gzip because the size of this message would exceed 40K if I didn't.


If I were to guess, I'd say this is a python 2.7 - 3.5 incompatibility issue. Probably using the string encode function is needed if the arg is a string. I'd suggest changing the above write method to something like this:


    def write(self, data):
        f = self.request.get_wfile()
        self.write = f
        return f(data.encode('utf-8') if isinstance(data, str) else data)

Is it just me or have you seen this problem too?


[cid:e83c406b-6643-4906-a068-8c21923c7cfe]

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