BaseTools: skip updating temporary variable.

[mirror_edk2.git] / BaseTools / Source / Python / Common / String.py

diff --git a/BaseTools/Source/Python/Common/String.py b/BaseTools/Source/Python/Common/String.py
index 696be4c1f0b2edda292a2dfb8db1a2dc03df14e2..5dc5b85dc5a459fb03358fd9ff07571cdc1de3b1 100644 (file)
--- a/BaseTools/Source/Python/Common/String.py
+++ b/BaseTools/Source/Python/Common/String.py
@@ -634,7 +634,7 @@ def PreCheck(FileName, FileContent, SupSectionTag):
 # @retval True The file type is correct\r
 #\r
 def CheckFileType(CheckFilename, ExtName, ContainerFilename, SectionName, Line, LineNo= -1):\r
-    if CheckFilename != '' and CheckFilename != None:\r
+    if CheckFilename != '' and CheckFilename is not None:\r
         (Root, Ext) = os.path.splitext(CheckFilename)\r
         if Ext.upper() != ExtName.upper():\r
             ContainerFile = open(ContainerFilename, 'r').read()\r
@@ -662,7 +662,7 @@ def CheckFileType(CheckFilename, ExtName, ContainerFilename, SectionName, Line,
 #\r
 def CheckFileExist(WorkspaceDir, CheckFilename, ContainerFilename, SectionName, Line, LineNo= -1):\r
     CheckFile = ''\r
-    if CheckFilename != '' and CheckFilename != None:\r
+    if CheckFilename != '' and CheckFilename is not None:\r
         CheckFile = WorkspaceFile(WorkspaceDir, CheckFilename)\r
         if not os.path.isfile(CheckFile):\r
             ContainerFile = open(ContainerFilename, 'r').read()\r