diff --git a/ZScoDoc.py b/ZScoDoc.py
index 3a2d328b..56204368 100644
--- a/ZScoDoc.py
+++ b/ZScoDoc.py
@@ -186,7 +186,7 @@ class ZScoDoc(ObjectManager, PropertyManager, RoleManager, Item, Persistent, Imp
         except:
             log("adding getAuthFailedMessage to Zope install")
             parent = self.aq_parent
-            from OFS.DTMLMethod import addDTMLMethod
+            from OFS.DTMLMethod import addDTMLMethod  # pylint: disable=import-error
 
             addDTMLMethod(parent, "getAuthFailedMessage", file="Identification")
 
@@ -661,15 +661,13 @@ Problème de connexion (identifiant, mot de passe): <em>contacter votre responsa
     def standard_error_message(
         self,
         error_value=None,
-        error_message=None,
+        error_message=None,  # unused ?
         error_type=None,
         error_traceback=None,
         error_tb=None,
         **kv
     ):
         "Recuperation des exceptions Zope"
-        sco_exc_mail = scu.SCO_EXC_MAIL
-        sco_dev_mail = scu.SCO_DEV_MAIL
         # neat (or should I say dirty ?) hack to get REQUEST
         # in fact, our caller (probably SimpleItem.py) has the REQUEST variable
         # that we'd like to use for our logs, but does not pass it as an argument.
@@ -682,9 +680,6 @@ Problème de connexion (identifiant, mot de passe): <em>contacter votre responsa
         # Authentication uses exceptions, pass them up
         HTTP_X_FORWARDED_FOR = REQUEST.get("HTTP_X_FORWARDED_FOR", "")
         if error_type == "LoginRequired":
-            #    raise 'LoginRequired', ''  # copied from exuserFolder (beurk, old style exception...)
-            #            if REQUEST:
-            #    REQUEST.response.setStatus( 401, "Unauthorized") # ??????
             log("LoginRequired from %s" % HTTP_X_FORWARDED_FOR)
             self.login_page = error_value
             return error_value
@@ -695,6 +690,14 @@ Problème de connexion (identifiant, mot de passe): <em>contacter votre responsa
         log("exception caught: %s" % error_type)
         log(traceback.format_exc())
 
+        params = {
+            "error_type": error_type,
+            "error_value": error_value,
+            "error_tb": error_tb,
+            "sco_exc_mail": scu.SCO_EXC_MAIL,
+            "sco_dev_mail": scu.SCO_DEV_MAIL,
+        }
+
         if error_type == "ScoGenError":
             return "<p>" + str(error_value) + "</p>"
         elif error_type in ("ScoValueError", "FormatError"):
@@ -732,11 +735,11 @@ Problème de connexion (identifiant, mot de passe): <em>contacter votre responsa
   </p>
 </td></tr>
 </table>        """
-                % vars()
+                % params
             )
             # display error traceback (? may open a security risk via xss attack ?)
             # log('exc B')
-            txt_html = self._report_request(REQUEST, fmt="html")
+            params["txt_html"] = self._report_request(REQUEST, fmt="html")
             H.append(
                 """<h4 class="scodoc">Zope Traceback (à envoyer par mail à <a href="mailto:%(sco_dev_mail)s">%(sco_dev_mail)s</a>)</h4><div style="background-color: rgb(153,153,204); border: 1px;">
 %(error_tb)s
@@ -747,7 +750,7 @@ Problème de connexion (identifiant, mot de passe): <em>contacter votre responsa
 
 <p>Merci de votre patience !</p>
 """
-                % vars()
+                % params
             )
             try:
                 H.append(self.standard_html_footer(REQUEST))
@@ -756,14 +759,14 @@ Problème de connexion (identifiant, mot de passe): <em>contacter votre responsa
                 pass
 
         # --- Mail:
-        error_traceback_txt = scu.scodoc_html2txt(error_tb)
+        params["error_traceback_txt"] = scu.scodoc_html2txt(error_tb)
         txt = (
             """
 ErrorType: %(error_type)s
 
 %(error_traceback_txt)s
 """
-            % vars()
+            % params
         )
 
         self.send_debug_alert(txt, REQUEST=REQUEST)
@@ -774,25 +777,29 @@ ErrorType: %(error_type)s
 
     def _report_request(self, REQUEST, fmt="txt"):
         """string describing current request for bug reports"""
-        AUTHENTICATED_USER = REQUEST.get("AUTHENTICATED_USER", "")
-        dt = time.asctime()
-        URL = REQUEST.get("URL", "")
         QUERY_STRING = REQUEST.get("QUERY_STRING", "")
         if QUERY_STRING:
             QUERY_STRING = "?" + QUERY_STRING
-        METHOD = REQUEST.get("REQUEST_METHOD", "")
-
         if fmt == "txt":
             REFERER = REQUEST.get("HTTP_REFERER", "")
             HTTP_USER_AGENT = REQUEST.get("HTTP_USER_AGENT", "")
         else:
             REFERER = "na"
             HTTP_USER_AGENT = "na"
-        form = REQUEST.get("form", "")
-        HTTP_X_FORWARDED_FOR = REQUEST.get("HTTP_X_FORWARDED_FOR", "")
-        svn_version = scu.get_svn_version(self.file_path)
-        SCOVERSION = VERSION.SCOVERSION
 
+        params = dict(
+            AUTHENTICATED_USER=REQUEST.get("AUTHENTICATED_USER", ""),
+            dt=time.asctime(),
+            URL=REQUEST.get("URL", ""),
+            QUERY_STRING=QUERY_STRING,
+            METHOD=REQUEST.get("REQUEST_METHOD", ""),
+            REFERER=REFERER,
+            HTTP_USER_AGENT=HTTP_USER_AGENT,
+            form=REQUEST.get("form", ""),
+            HTTP_X_FORWARDED_FOR=REQUEST.get("HTTP_X_FORWARDED_FOR", ""),
+            svn_version=scu.get_svn_version(self.file_path),
+            SCOVERSION=VERSION.SCOVERSION,
+        )
         txt = (
             """
 Version: %(SCOVERSION)s
@@ -808,7 +815,7 @@ Agent: %(HTTP_USER_AGENT)s
 
 subversion: %(svn_version)s
 """
-            % vars()
+            % params
         )
         if fmt == "html":
             txt = txt.replace("\n", "<br/>")