I am trying to plug eWebEditPro+XML from Ektron into Plone as my WYSIWYG editor. I have been successful up to one tiny unacceptable glitch. Initial content for the editor is typically stored in the value attribute of a hidden field. For example, <input type="hidden" name="MyContent1" value="This is the initial content."> I need to convert certain characters. The documentation from Ektron says that if my environment does not provide such a function, I have to write it and they provide the following pseudo code as an example: String strContent strContent = ReplaceString(strContent, "&", "&") strContent = ReplaceString(strContent, "<", "<") strContent = ReplaceString(strContent, ">", ">") strContent = ReplaceString(strContent, """, """) The following (in custom/wysiwyg_support) works as long as I don't put any apostrophes in my content: <span tal:replace="structure string:<input type='hidden' name='text' value='" /> <span tal:content="inputvalue" /><span tal:replace="structure string:' />" /> <span tal:replace="structure string:<script language='JavaScript'>" /> eWebEditPro.create("text", "90%", 450); <span tal:replace="structure string:</script>" /> I have tried to follow the lead that I found at: http://plone.org/Members/tlynch/HowToIntegrateEditize/view I have tried to replace the first two lines with: <span tal:replace="structure string:<input type='hidden' name='text' value='" /> <span tal:replace="structure python:here.eweb.munge(inputvalue)" /><span tal:replace="structure string:' />" /> I have the follwing in a file at Plone/eweb ## Script (Python) "munge" ##bind container=container ##bind context=context ##bind namespace= ##bind script=script ##bind subpath=traverse_subpath ##parameters=inputvalue ##title= # to guard against files that might contain only # returns or linefeeds, we will delete each separately # rather than trying: replace("\r\n", "") inputvalue = inputvalue.replace("\r", "") inputvalue = inputvalue.replace("\n", "") inputvalue = inputvalue.replace("'", "'") return inputvalue When I try this, I get the following: Site error This site encountered an error trying to fulfill your request. The errors were: Error Details Error Type AttributeError Error Value __call_ Is there anyone who might be able to steer me in the right direction or has already successfully done this?