diff --git a/tamper/apostrophemask.py b/tamper/apostrophemask.py
index 13c644b5b..6e366b2e1 100644
--- a/tamper/apostrophemask.py
+++ b/tamper/apostrophemask.py
@@ -29,9 +29,4 @@ def tamper(payload):
         * http://lukasz.pilorz.net/testy/full_width_utf/index.phps
     """
 
-    retVal = payload
-
-    if payload:
-        retVal = payload.replace('\'', '%EF%BC%87')
-
-    return retVal
+    return payload.replace('\'', '%EF%BC%87') if payload else payload
diff --git a/tamper/apostrophenullencode.py b/tamper/apostrophenullencode.py
index 4029f2ee1..5606bfd57 100644
--- a/tamper/apostrophenullencode.py
+++ b/tamper/apostrophenullencode.py
@@ -23,9 +23,4 @@ def tamper(payload):
         * Output: AND %00%271%00%27=%00%271%00%27
     """
 
-    retVal = payload
-
-    if payload:
-        retVal = payload.replace('\'', '%00%27')
-
-    return retVal
+    return payload.replace('\'', '%00%27') if payload else payload
diff --git a/tamper/appendnullbyte.py b/tamper/appendnullbyte.py
index 2fec7e1c4..b0293d94c 100644
--- a/tamper/appendnullbyte.py
+++ b/tamper/appendnullbyte.py
@@ -33,9 +33,4 @@ def tamper(payload):
     Reference: http://projects.webappsec.org/w/page/13246949/Null-Byte-Injection
     """
 
-    retVal = payload
-
-    if payload:
-        retVal = "%s%%00" % payload
-
-    return retVal
+    return "%s%%00" % payload if payload else payload
diff --git a/tamper/base64encode.py b/tamper/base64encode.py
index 7f08faf76..73045a03c 100644
--- a/tamper/base64encode.py
+++ b/tamper/base64encode.py
@@ -25,9 +25,4 @@ def tamper(payload):
         * Output: MScgQU5EIFNMRUVQKDUpIw==
     """
 
-    retVal = payload
-
-    if payload:
-        retVal = base64.b64encode(payload)
-
-    return retVal
+    return base64.b64encode(payload) if payload else payload
diff --git a/tamper/securesphere.py b/tamper/securesphere.py
index fd59fdddb..88ebb6cd2 100644
--- a/tamper/securesphere.py
+++ b/tamper/securesphere.py
@@ -29,9 +29,4 @@ def tamper(payload):
         * Reference: http://seclists.org/fulldisclosure/2011/May/163
     """
 
-    retVal = payload
-
-    if payload:
-        retVal += " and '0having'='0having'"
-
-    return retVal
+    return payload + " and '0having'='0having'" if payload else payload
diff --git a/tamper/space2randomblank.py b/tamper/space2randomblank.py
index edeb28f85..5ea7ae35c 100644
--- a/tamper/space2randomblank.py
+++ b/tamper/space2randomblank.py
@@ -40,7 +40,7 @@ def tamper(payload):
     #   LF      0A      new line
     #   FF      0C      new page
     #   CR      0D      carriage return
-    blanks = ['%09', '%0A', '%0C', '%0D']
+    blanks = ("%09", "%0A", "%0C", "%0D")
     retVal = payload
 
     if payload:
@@ -60,7 +60,7 @@ def tamper(payload):
             elif payload[i] == '"':
                 doublequote = not doublequote
 
-            elif payload[i] == " " and not doublequote and not quote:
+            elif payload[i] == ' ' and not doublequote and not quote:
                 retVal += random.choice(blanks)
                 continue