diff --git a/framework/dut.py b/framework/dut.py
index dcf833b4..4c732ec9 100644
--- a/framework/dut.py
+++ b/framework/dut.py
@@ -573,7 +573,7 @@ class Dut(Crb):
         """
         Setup Freebsd hugepages.
         """
-        if hugepages is -1:
+        if hugepages == -1:
             hugepages = 4096
 
         num_buffers = hugepages / 1024
diff --git a/framework/logger.py b/framework/logger.py
index 4600c5fc..63e1d831 100644
--- a/framework/logger.py
+++ b/framework/logger.py
@@ -465,7 +465,7 @@ class LogParser(object):
 
     def __dict_log(self, lvl_name, msg):
         tmp = {}
-        if lvl_name is not '':
+        if lvl_name != '':
             tmp[lvl_name] = msg
         return tmp
 
diff --git a/framework/packet.py b/framework/packet.py
index 7d974db0..1c325ff2 100644
--- a/framework/packet.py
+++ b/framework/packet.py
@@ -209,7 +209,7 @@ class scapy(object):
     def strip_vlan(self, element, p_index=0):
         value = None
 
-        if self.pkts[p_index].haslayer('Dot1Q') is 0:
+        if self.pkts[p_index].haslayer('Dot1Q') == 0:
             return None
 
         if element == 'vlan':
@@ -227,7 +227,7 @@ class scapy(object):
     def strip_etag(self, element, p_index=0):
         value = None
 
-        if self.pkts[p_index].haslayer('Dot1BR') is 0:
+        if self.pkts[p_index].haslayer('Dot1BR') == 0:
             return None
 
         if element == 'ECIDbase':
diff --git a/framework/project_dpdk.py b/framework/project_dpdk.py
index 259282f4..583fcd6c 100644
--- a/framework/project_dpdk.py
+++ b/framework/project_dpdk.py
@@ -308,7 +308,7 @@ class DPDKdut(Dut):
                 if 'i386' in cur_path:
                     pkg_path = cur_path
                     break
-            assert(pkg_path is not ''), "please make sure you env have the i386 pkg-config path"
+            assert(pkg_path != ''), "please make sure you env have the i386 pkg-config path"
 
             self.send_expect("export CFLAGS=-m32", "# ")
             self.send_expect("export PKG_CONFIG_LIBDIR=%s" % pkg_path, "# ")
@@ -545,7 +545,7 @@ class DPDKdut(Dut):
                 if 'i386' in cur_path:
                     pkg_path = cur_path
                     break
-            assert(pkg_path is not ''), "please make sure you env have the i386 pkg-config path"
+            assert(pkg_path != ''), "please make sure you env have the i386 pkg-config path"
 
             self.send_expect("export CFLAGS=-m32", "# ", alt_session=True)
             self.send_expect("export PKG_CONFIG_LIBDIR=%s" % pkg_path, "# ", alt_session=True)
diff --git a/framework/settings.py b/framework/settings.py
index 2b6a3ce3..c5edbb7a 100644
--- a/framework/settings.py
+++ b/framework/settings.py
@@ -385,7 +385,7 @@ def accepted_nic(pci_id):
     if pci_id not in list(NICS.values()):
         return False
 
-    if nic is 'any':
+    if nic == 'any':
         return True
 
     else:
diff --git a/framework/tester.py b/framework/tester.py
index b2cbdb0d..ec233b8a 100644
--- a/framework/tester.py
+++ b/framework/tester.py
@@ -354,7 +354,7 @@ class Tester(Crb):
         try:
             for port_info in self.ports_info:
                 nic_type = port_info.get('type') 
-                if nic_type is not 'trex':
+                if nic_type != 'trex':
                     continue
                 pci_bus = port_info.get('pci')
                 port_inst = port_info.get('port')
diff --git a/framework/virt_resource.py b/framework/virt_resource.py
index 4356ee50..6ae2a28b 100644
--- a/framework/virt_resource.py
+++ b/framework/virt_resource.py
@@ -83,7 +83,7 @@ class VirtResource(object):
     def __port_on_socket(self, pci, socket):
         for port in self.ports_info:
             if port['pci'] == pci:
-                if socket is -1:
+                if socket == -1:
                     return True
 
                 if port['numa'] == socket:
@@ -118,7 +118,7 @@ class VirtResource(object):
     def __core_on_socket(self, core, socket):
         for dut_core in self.dut.cores:
             if int(dut_core['thread']) == core:
-                if socket is -1:
+                if socket == -1:
                     return True
 
                 if int(dut_core['socket']) == socket:
