1 files changed, 6 insertions, 6 deletions
diff --git a/BaseTools/Source/Python/GenPatchPcdTable/GenPatchPcdTable.py b/BaseTools/Source/Python/GenPatchPcdTable/GenPatchPcdTable.py
index d962ab0add..8750db998f 100644
--- a/BaseTools/Source/Python/GenPatchPcdTable/GenPatchPcdTable.py
+++ b/BaseTools/Source/Python/GenPatchPcdTable/GenPatchPcdTable.py
@@ -31,7 +31,7 @@ __copyright__ = "Copyright (c) 2008 - 2018, Intel Corporation. All rights reserv
 #======================================  Internal Libraries ========================================
 
 #============================================== Code ===============================================
-symRe = re.compile('^([\da-fA-F]+):([\da-fA-F]+) +([\.\-:\\\\\w\?@\$<>]+) +([\da-fA-F]+)', re.UNICODE)
+symRe = re.compile(r'^([\da-fA-F]+):([\da-fA-F]+) +([\.\-:\\\\\w\?@\$<>]+) +([\da-fA-F]+)', re.UNICODE)
 
 def parsePcdInfoFromMapFile(mapfilepath, efifilepath):
     """ Parse map file to get binary patch pcd information
@@ -49,7 +49,7 @@ def parsePcdInfoFromMapFile(mapfilepath, efifilepath):
 
     if len(lines) == 0: return None
     firstline = lines[0].strip()
-    if re.match('^\s*Address\s*Size\s*Align\s*Out\s*In\s*Symbol\s*$', firstline):
+    if re.match(r'^\s*Address\s*Size\s*Align\s*Out\s*In\s*Symbol\s*$', firstline):
         return _parseForXcodeAndClang9(lines, efifilepath)
     if (firstline.startswith("Archive member included ") and
         firstline.endswith(" file (symbol)")):
@@ -59,12 +59,12 @@ def parsePcdInfoFromMapFile(mapfilepath, efifilepath):
     return _parseGeneral(lines, efifilepath)
 
 def _parseForXcodeAndClang9(lines, efifilepath):
-    valuePattern = re.compile('^([\da-fA-FxX]+)([\s\S]*)([_]*_gPcd_BinaryPatch_([\w]+))')
+    valuePattern = re.compile(r'^([\da-fA-FxX]+)([\s\S]*)([_]*_gPcd_BinaryPatch_([\w]+))')
     status = 0
     pcds = []
     for line in lines:
         line = line.strip()
-        if status == 0 and (re.match('^\s*Address\s*Size\s*Align\s*Out\s*In\s*Symbol\s*$', line) \
+        if status == 0 and (re.match(r'^\s*Address\s*Size\s*Align\s*Out\s*In\s*Symbol\s*$', line) \
             or line == "# Symbols:"):
             status = 1
             continue
@@ -77,7 +77,7 @@ def _parseForXcodeAndClang9(lines, efifilepath):
 
 def _parseForGCC(lines, efifilepath):
     """ Parse map file generated by GCC linker """
-    dataPattern = re.compile('^.data._gPcd_BinaryPatch_([\w_\d]+)$')
+    dataPattern = re.compile(r'^.data._gPcd_BinaryPatch_([\w_\d]+)$')
     status = 0
     imageBase = -1
     sections = []
@@ -136,7 +136,7 @@ def _parseGeneral(lines, efifilepath):
     status = 0    #0 - beginning of file; 1 - PE section definition; 2 - symbol table
     secs = []    # key = section name
     bPcds = []
-    symPattern = re.compile('^[_]+gPcd_BinaryPatch_([\w]+)')
+    symPattern = re.compile(r'^[_]+gPcd_BinaryPatch_([\w]+)')
 
     for line in lines:
         line = line.strip()