diff --git a/lib/controller/checks.py b/lib/controller/checks.py
index 1ffb4ddde..30e000515 100644
--- a/lib/controller/checks.py
+++ b/lib/controller/checks.py
@@ -322,8 +322,9 @@ def checkSqlInjection(place, parameter, value):
                             # Perform the test's request and grep the response
                             # body for the test's <grep> regular expression
                             page, headers = Request.queryPage(reqPayload, place, content=True, raise404=False)
-                            output = extractRegexResult(check, page, re.DOTALL | re.IGNORECASE)\
-                              or extractRegexResult(check, listToStrValue(headers.headers if headers else None), re.DOTALL | re.IGNORECASE)
+                            output = extractRegexResult(check, page, re.DOTALL | re.IGNORECASE) \
+                                     or extractRegexResult(check, listToStrValue(headers.headers \
+                                     if headers else None), re.DOTALL | re.IGNORECASE)
 
                             if output:
                                 result = output.replace(kb.misc.space, " ") == "1"
diff --git a/lib/controller/controller.py b/lib/controller/controller.py
index e3c082f7d..072ab4f1f 100644
--- a/lib/controller/controller.py
+++ b/lib/controller/controller.py
@@ -196,7 +196,7 @@ def start():
                 if conf.forms:
                     message = "[#%d] form:\n%s %s" % (hostCount, conf.method or HTTPMETHOD.GET, targetUrl)
                 else:
-                    message = "url %d:\n%s %s%s" % (hostCount, conf.method or HTTPMETHOD.GET, targetUrl,  " (PR: %s)" % get_pagerank(targetUrl) if conf.googleDork else "")
+                    message = "url %d:\n%s %s%s" % (hostCount, conf.method or HTTPMETHOD.GET, targetUrl,  " (PageRank: %s)" % get_pagerank(targetUrl) if conf.googleDork else "")
 
                 if conf.cookie:
                     message += "\nCookie: %s" % conf.cookie
diff --git a/lib/core/common.py b/lib/core/common.py
index fd4b76527..3e778fe8e 100644
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -2300,6 +2300,10 @@ def listToStrValue(value):
     >>> listToStrValue([1,2,3])
     '1, 2, 3'
     """
+
+    if isinstance(value, (set, tuple)):
+        value = list(value)
+
     if isinstance(value, list):
         retValue = value.__str__().lstrip('[').rstrip(']')
     else:
diff --git a/lib/core/update.py b/lib/core/update.py
index edbb0f07b..685f46d76 100644
--- a/lib/core/update.py
+++ b/lib/core/update.py
@@ -83,5 +83,6 @@ def update():
             logger.error(errMsg)
         elif svnStdout:
             revision = re.search("revision\s+([\d]+)", svnStdout, re.I)
+
             if revision:
                 logger.info('updated to the latest revision %s' % revision.group(1))
diff --git a/lib/request/connect.py b/lib/request/connect.py
index a16506e7b..f368fe6ae 100644
--- a/lib/request/connect.py
+++ b/lib/request/connect.py
@@ -257,6 +257,7 @@ class Connect:
         except urllib2.HTTPError, e:
             page = None
             responseHeaders = None
+
             try:
                 page = e.read()
                 responseHeaders = e.info()
diff --git a/lib/techniques/blind/inference.py b/lib/techniques/blind/inference.py
index bf831ca18..4354aa8b5 100644
--- a/lib/techniques/blind/inference.py
+++ b/lib/techniques/blind/inference.py
@@ -147,8 +147,10 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
 
     def validateChar(idx, value):
         """
-        used in time based inference (in case that original and retrieved value are not equal there will be deliberate delay)
+        Used in time-based inference (in case that original and retrieved
+        value are not equal there will be a deliberate delay).
         """
+
         forgedPayload = safeStringFormat(payload.replace(INFERENCE_GREATER_CHAR, INFERENCE_NOT_EQUALS_CHAR), (expressionUnescaped, idx, value))
         queriesCount[0] += 1
         result = Request.queryPage(forgedPayload, timeBasedCompare=timeBasedCompare, raise404=False)
@@ -240,9 +242,10 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
                             return None
                     else:
                         retVal = minValue + 1
+
                         if retVal in originalTbl or (retVal == ord('\n') and CHAR_INFERENCE_MARK in payload):
                             if timeBasedCompare and not validateChar(idx, retVal):
-                                errMsg = "invalid character detected. retrying..."
+                                errMsg = "invalid character detected. retrying.."
                                 logger.error(errMsg)
 
                                 conf.timeSec += 1
diff --git a/lib/techniques/error/use.py b/lib/techniques/error/use.py
index 51b15893d..52c589320 100644
--- a/lib/techniques/error/use.py
+++ b/lib/techniques/error/use.py
@@ -61,8 +61,9 @@ def __oneShotErrorUse(expression, field):
 
     # Parse the returned page to get the exact error-based
     # sql injection output
-    output = extractRegexResult(check, page, re.DOTALL | re.IGNORECASE)\
-      or extractRegexResult(check, listToStrValue(headers.headers if headers else None), re.DOTALL | re.IGNORECASE)
+    output = extractRegexResult(check, page, re.DOTALL | re.IGNORECASE) \
+             or extractRegexResult(check, listToStrValue(headers.headers \
+             if headers else None), re.DOTALL | re.IGNORECASE)
 
     dataToSessionFile("[%s][%s][%s][%s][%s]\n" % (conf.url, kb.injection.place, conf.parameters[kb.injection.place], expression, replaceNewlineTabs(output)))