<dtml-if "print==yes">
Document Template Parse Error Expression (Python) Syntax error: invalid syntax , for tag <dtml-if "print==yes">, on line 51 of standard_html_header
or <dtml-if "REQUEST.form['print']==yes">
<H2>Site Error</H2> <P>An error was encountered while publishing this resource. </P> <P><STRONG>KeyError</STRONG></P> Sorry, a site error occurred.<p> <!-- Traceback (innermost last): File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 150, in publish_module File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 114, in publish File /usr/local/zope/lib/python/Zope/__init__.py, line 159, in zpublisher_exception_hook (Object: www) File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 98, in publish File /usr/local/zope/lib/python/ZPublisher/mapply.py, line 88, in mapply (Object: index_html) File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 39, in call_object (Object: index_html) File /usr/local/zope/lib/python/OFS/DTMLMethod.py, line 127, in __call__ (Object: index_html) File /usr/local/zope/lib/python/DocumentTemplate/DT_String.py, line 473, in __call__ (Object: index_html) File /usr/local/zope/lib/python/OFS/DTMLMethod.py, line 120, in __call__ (Object: standard_html_header) File /usr/local/zope/lib/python/DocumentTemplate/DT_String.py, line 473, in __call__ (Object: standard_html_header) File /usr/local/zope/lib/python/DocumentTemplate/DT_Util.py, line 159, in eval (Object: REQUEST.form['print']==yes) (Info: REQUEST) File <string>, line 2, in f File /usr/local/zope/lib/python/AccessControl/DTML.py, line 32, in guarded_getitem (Object: index_html) File /usr/local/zope/lib/python/AccessControl/ZopeGuards.py, line 90, in guarded_getitem KeyError: print -->