diff --git a/lib/core/patch.py b/lib/core/patch.py
index 432d6a68c..b23651b57 100644
--- a/lib/core/patch.py
+++ b/lib/core/patch.py
@@ -36,6 +36,8 @@ from lib.request.templates import getPageTemplate
 from thirdparty import six
 from thirdparty.six.moves import http_client as _http_client
 
+_rand = 0
+
 def dirtyPatches():
     """
     Place for "dirty" Python related patches
diff --git a/lib/core/settings.py b/lib/core/settings.py
index ac038b010..124ba2a21 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.4.2.19"
+VERSION = "1.4.2.20"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/lib/core/testing.py b/lib/core/testing.py
index 0eff43f49..d703d0f59 100644
--- a/lib/core/testing.py
+++ b/lib/core/testing.py
@@ -5,8 +5,6 @@ Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
 See the file 'LICENSE' for copying permission
 """
 
-from __future__ import division
-
 import doctest
 import logging
 import os
@@ -35,8 +33,6 @@ from lib.core.data import paths
 from lib.core.data import queries
 from lib.core.patch import unisonRandom
 
-_rand = 0
-
 def vulnTest():
     """
     Runs the testing against 'vulnserver'
diff --git a/lib/request/basic.py b/lib/request/basic.py
index 15dd04bc2..09d94d2be 100644
--- a/lib/request/basic.py
+++ b/lib/request/basic.py
@@ -4,7 +4,6 @@
 Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
 See the file 'LICENSE' for copying permission
 """
-from __future__ import print_function
 
 import codecs
 import gzip
@@ -239,12 +238,8 @@ def checkCharEncoding(encoding, warn=True):
 
     if encoding:
         try:
-            _ = getBytes(randomStr())
-            print(repr(_))
-            print(encoding)
-            six.text_type(_, encoding)
-        except Exception as ex:
-            print(getSafeExString(ex))
+            six.text_type(getBytes(randomStr()), encoding)
+        except:
             if warn:
                 warnMsg = "invalid web page charset '%s'" % encoding
                 singleTimeLogMessage(warnMsg, logging.WARN, encoding)