diff --git a/lib/core/dump.py b/lib/core/dump.py
index 39310bad0..b4c8f341d 100644
--- a/lib/core/dump.py
+++ b/lib/core/dump.py
@@ -379,7 +379,7 @@ class Dump:
                             if not value or re.search("^[\ *]*$", value): #NULL
                                 continue
 
-                            _ = int(value)
+                            int(value)
                         except ValueError:
                             colType = None
                             break
@@ -392,7 +392,7 @@ class Dump:
                                 if not value or re.search("^[\ *]*$", value): #NULL
                                     continue
 
-                                _ = float(value)
+                                float(value)
                             except ValueError:
                                 colType = None
                                 break
@@ -527,7 +527,7 @@ class Dump:
         self.string(query, queryRes)
 
     def rFile(self,filePath,fileData):
-        self.string("%s file saved to" % filePath,fileData,sort=False) 
+        self.string("%s file saved to" % filePath,fileData,sort=False)
 
     def registerValue(self,registerData):
         self.string("Registry key value data", registerData,sort=False)
diff --git a/lib/core/option.py b/lib/core/option.py
index db64c140c..be580a02c 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -58,7 +58,6 @@ from lib.core.datatype import AttribDict
 from lib.core.datatype import InjectionDict
 from lib.core.defaults import defaults
 from lib.core.enums import CUSTOM_LOGGING
-from lib.core.enums import DBMS
 from lib.core.enums import HTTPHEADER
 from lib.core.enums import HTTPMETHOD
 from lib.core.enums import MOBILES
@@ -1018,7 +1017,7 @@ def __setHTTPAuthentication():
         elif aTypeLower == "ntlm":
             try:
                 from ntlm import HTTPNtlmAuthHandler
-            except ImportError, _:
+            except ImportError:
                 errMsg = "sqlmap requires Python NTLM third-party library "
                 errMsg += "in order to authenticate via NTLM, "
                 errMsg += "http://code.google.com/p/python-ntlm/"
diff --git a/plugins/dbms/mssqlserver/enumeration.py b/plugins/dbms/mssqlserver/enumeration.py
index 7a965b9b2..69ff21f92 100644
--- a/plugins/dbms/mssqlserver/enumeration.py
+++ b/plugins/dbms/mssqlserver/enumeration.py
@@ -160,7 +160,7 @@ class Enumeration(GenericEnumeration):
         foundTbls = {}
         tblList = conf.tbl.split(",")
         tblCond = rootQuery.inband.condition
-        dbCond = rootQuery.inband.condition2
+        #dbCond = rootQuery.inband.condition2
 
         tblConsider, tblCondParam = self.likeOrExact("table")