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I'm getting the following error from my cherrypy script that is being generated by the submit module.
ValueError: Page handlers MUST return bytes. Use tools.encode if you wish to return unicode
I turned tool.encode on in my config but I'm still getting this error. I'm allowing users to upload content via the jQuery Form Plugin. Anythoughts as to why I'm getting this error?
Here is my cherrypy file:
class Root(object):
@cherrypy.expose
def index(self)
return open('/home/joestox/webapps/freelinreg_static/index.html')
@cherrypy.expose
def submit(self, myfile):
cherrypy.session['myfile'] = myfile
data_name = myfile.filename
#Send back to JQuery with Ajax
#Put in JSON form
data_name= json.dumps(dict(title = data_name))
cherrypy.response.headers['Content-Type'] = 'application/json'
return data_name
cherrypy.config.update({
'tools.staticdir.debug': True,
'log.screen': True,
'server.socket_host': '127.0.0.1',
'server.socket_port': *****,
'tools.sessions.on': True,
'tools.encode.on': True,
'tools.encode.encoding': 'utf-8',
})
config = {
}
cherrypy.tree.mount(Root(), '/', config=config)
cherrypy.engine.start()
HTML:
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript' src='freelinreg_static/google.js'></script>
<script type='text/javascript' src='freelinreg_static/frontend.js'></script>
<script type='text/javascript' src='freelinreg_static/malsup.js'></script>
</head>
<body>
<form id="dataform" action="submit" method="post" enctype="multipart/form-data">
<input type="file" name="myfile" id="myFile"/>
<input type="submit" id="data_submit" value="Continue"/>
</form>
</body>
</html>
jQuery (frontend.js):
$(document).ready(function () {
(function () {
$('#dataform').ajaxForm({
url: "submit",
success: function (data) {
var $a_var = data['title'];
$('body').append($a_var);
}
});
return false;
})();
});
872
I my case the issue started after switching from python2 to python3.
It was resolved by setting
'tools.encode.text_only': False
In the app global configuration.
Hope it helps
162
Hi people looking for answers. I had the same problem but in my case this little addition solved everything.
return <some-json>.encode('utf8')
You need to rearrange global config update to happen after application mount:
config = {
}
cherrypy.tree.mount(Root(), '/', config=config)
cherrypy.config.update({
'tools.staticdir.debug': True,
'log.screen': True,
'server.socket_host': '127.0.0.1',
'server.socket_port': *****,
'tools.sessions.on': True,
'tools.encode.on': True,
'tools.encode.encoding': 'utf-8'
})
cherrypy.engine.start()
Because you were calling config = {} after your config update command you were overriding the update settings for Root application.
Also, change your submit function to this:
@cherrypy.expose
@cherrypy.tools.json_out
def submit(self, myfile):
cherrypy.session['myfile'] = myfile
# Return dict, which will be autoconverted to JSON
# by the json_out tool (see decorator above)
return {'title': myfile.filename}
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