Based on "futurize -f lib2to3.fixes.fix_idioms"

* Change some type comparisons to isinstance() calls:
    type(x) == T -> isinstance(x, T)
    type(x) is T -> isinstance(x, T)
    type(x) != T -> not isinstance(x, T)
    type(x) is not T -> not isinstance(x, T)

* Change "while 1:" into "while True:".

* Change both

    v = list(EXPR)
    v.sort()
    foo(v)

and the more general

    v = EXPR
    v.sort()
    foo(v)

into

    v = sorted(EXPR)
    foo(v)

Contributed-under: TianoCore Contribution Agreement 1.1
Cc: Yonghong Zhu <yonghong....@intel.com>
Cc: Liming Gao <liming....@intel.com>
Signed-off-by: Gary Lin <g...@suse.com>
---
 BaseTools/Scripts/MemoryProfileSymbolGen.py                     |  2 +-
 BaseTools/Scripts/UpdateBuildVersions.py                        |  6 ++--
 BaseTools/Source/Python/AutoGen/BuildEngine.py                  |  2 +-
 BaseTools/Source/Python/AutoGen/GenDepex.py                     |  2 +-
 BaseTools/Source/Python/Common/Expression.py                    | 34 
++++++++++----------
 BaseTools/Source/Python/Common/Misc.py                          | 13 ++++----
 BaseTools/Source/Python/Common/RangeExpression.py               | 16 ++++-----
 BaseTools/Source/Python/Common/StringUtils.py                   |  4 +--
 BaseTools/Source/Python/Common/ToolDefClassObject.py            |  2 +-
 BaseTools/Source/Python/Common/VpdInfoFile.py                   |  3 +-
 BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaFileParser.py | 12 +++----
 BaseTools/Source/Python/Ecc/Xml/XmlRoutines.py                  |  2 +-
 BaseTools/Source/Python/Eot/Parser.py                           |  2 +-
 BaseTools/Source/Python/GenFds/FdfParser.py                     |  2 +-
 BaseTools/Source/Python/GenFds/GenFds.py                        |  2 +-
 BaseTools/Source/Python/TargetTool/TargetTool.py                |  2 +-
 BaseTools/Source/Python/UPT/GenMetaFile/GenDecFile.py           | 15 +++------
 BaseTools/Source/Python/UPT/GenMetaFile/GenInfFile.py           | 21 
++++--------
 BaseTools/Source/Python/UPT/Library/Misc.py                     |  6 ++--
 BaseTools/Source/Python/UPT/Library/ParserValidate.py           |  2 +-
 BaseTools/Source/Python/UPT/Library/StringUtils.py              |  2 +-
 BaseTools/Source/Python/UPT/Library/Xml/XmlRoutines.py          |  2 +-
 BaseTools/Source/Python/UPT/PomAdapter/DecPomAlignment.py       |  3 +-
 BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignment.py       |  3 +-
 BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignmentMisc.py   |  3 +-
 BaseTools/Source/Python/Workspace/BuildClassObject.py           |  2 +-
 BaseTools/Source/Python/Workspace/DscBuildData.py               |  8 ++---
 BaseTools/Source/Python/Workspace/MetaFileParser.py             | 20 
++++++------
 BaseTools/Source/Python/build/BuildReport.py                    |  3 +-
 BaseTools/Source/Python/build/build.py                          |  4 +--
 BaseTools/gcc/mingw-gcc-build.py                                |  4 +--
 31 files changed, 93 insertions(+), 111 deletions(-)

diff --git a/BaseTools/Scripts/MemoryProfileSymbolGen.py 
b/BaseTools/Scripts/MemoryProfileSymbolGen.py
index 1dbb116bba0d..eaae0283c51d 100644
--- a/BaseTools/Scripts/MemoryProfileSymbolGen.py
+++ b/BaseTools/Scripts/MemoryProfileSymbolGen.py
@@ -264,7 +264,7 @@ def main():
         return 1
 
     try:
-        while 1:
+        while True:
             line = file.readline()
             if not line:
                 break
diff --git a/BaseTools/Scripts/UpdateBuildVersions.py 
b/BaseTools/Scripts/UpdateBuildVersions.py
index 74e3ae4302e8..6c1dcf1cec65 100755
--- a/BaseTools/Scripts/UpdateBuildVersions.py
+++ b/BaseTools/Scripts/UpdateBuildVersions.py
@@ -253,7 +253,7 @@ def GetSvnRevision(opts):
     StatusCmd = "svn st -v --depth infinity --non-interactive"
     contents = ShellCommandResults(StatusCmd, opts)
     os.chdir(Cwd)
-    if type(contents) is ListType:
+    if isinstance(contents, ListType):
         for line in contents:
             if line.startswith("M "):
                 Modified = True
@@ -263,7 +263,7 @@ def GetSvnRevision(opts):
     InfoCmd = "svn info %s" % SrcPath.replace("\\", "/").strip()
     Revision = 0
     contents = ShellCommandResults(InfoCmd, opts)
-    if type(contents) is IntType:
+    if isinstance(contents, IntType):
         return 0, Modified
     for line in contents:
         line = line.strip()
@@ -284,7 +284,7 @@ def CheckSvn(opts):
     VerCmd = "svn --version"
     contents = ShellCommandResults(VerCmd, opts)
     opts.silent = OriginalSilent
-    if type(contents) is IntType:
+    if isinstance(contents, IntType):
         if opts.verbose:
             sys.stdout.write("SVN does not appear to be available.\n")
             sys.stdout.flush()
diff --git a/BaseTools/Source/Python/AutoGen/BuildEngine.py 
b/BaseTools/Source/Python/AutoGen/BuildEngine.py
index 4d81ffa3436f..d285fa681220 100644
--- a/BaseTools/Source/Python/AutoGen/BuildEngine.py
+++ b/BaseTools/Source/Python/AutoGen/BuildEngine.py
@@ -69,7 +69,7 @@ class TargetDescBlock(object):
         return hash(self.Target.Path)
 
     def __eq__(self, Other):
-        if type(Other) == type(self):
+        if isinstance(Other, type(self)):
             return Other.Target.Path == self.Target.Path
         else:
             return str(Other) == self.Target.Path
diff --git a/BaseTools/Source/Python/AutoGen/GenDepex.py 
b/BaseTools/Source/Python/AutoGen/GenDepex.py
index b69788c37e08..e89191a72b9f 100644
--- a/BaseTools/Source/Python/AutoGen/GenDepex.py
+++ b/BaseTools/Source/Python/AutoGen/GenDepex.py
@@ -140,7 +140,7 @@ class DependencyExpression:
     def __init__(self, Expression, ModuleType, Optimize=False):
         self.ModuleType = ModuleType
         self.Phase = gType2Phase[ModuleType]
-        if type(Expression) == type([]):
+        if isinstance(Expression, type([])):
             self.ExpressionString = " ".join(Expression)
             self.TokenList = Expression
         else:
diff --git a/BaseTools/Source/Python/Common/Expression.py 
b/BaseTools/Source/Python/Common/Expression.py
index 5ee9802c4fe9..3dbcac8daf2c 100644
--- a/BaseTools/Source/Python/Common/Expression.py
+++ b/BaseTools/Source/Python/Common/Expression.py
@@ -246,12 +246,12 @@ class ValueExpression(BaseExpression):
         WrnExp = None
 
         if Operator not in {"==", "!=", ">=", "<=", ">", "<", "in", "not in"} 
and \
-            (type(Oprand1) == type('') or type(Oprand2) == type('')):
+            (isinstance(Oprand1, type('')) or isinstance(Oprand2, type(''))):
             raise BadExpression(ERR_STRING_EXPR % Operator)
         if Operator in {'in', 'not in'}:
-            if type(Oprand1) != type(''):
+            if not isinstance(Oprand1, type('')):
                 Oprand1 = IntToStr(Oprand1)
-            if type(Oprand2) != type(''):
+            if not isinstance(Oprand2, type('')):
                 Oprand2 = IntToStr(Oprand2)
         TypeDict = {
             type(0)  : 0,
@@ -261,18 +261,18 @@ class ValueExpression(BaseExpression):
 
         EvalStr = ''
         if Operator in {"!", "NOT", "not"}:
-            if type(Oprand1) == type(''):
+            if isinstance(Oprand1, type('')):
                 raise BadExpression(ERR_STRING_EXPR % Operator)
             EvalStr = 'not Oprand1'
         elif Operator in {"~"}:
-            if type(Oprand1) == type(''):
+            if isinstance(Oprand1, type('')):
                 raise BadExpression(ERR_STRING_EXPR % Operator)
             EvalStr = '~ Oprand1'
         else:
             if Operator in {"+", "-"} and (type(True) in {type(Oprand1), 
type(Oprand2)}):
                 # Boolean in '+'/'-' will be evaluated but raise warning
                 WrnExp = WrnExpression(WRN_BOOL_EXPR)
-            elif type('') in {type(Oprand1), type(Oprand2)} and 
type(Oprand1)!= type(Oprand2):
+            elif type('') in {type(Oprand1), type(Oprand2)} and not 
isinstance(Oprand1, type(Oprand2)):
                 # == between string and number/boolean will always return 
False, != return True
                 if Operator == "==":
                     WrnExp = WrnExpression(WRN_EQCMP_STR_OTHERS)
@@ -293,11 +293,11 @@ class ValueExpression(BaseExpression):
                     pass
                 else:
                     raise BadExpression(ERR_EXPR_TYPE)
-            if type(Oprand1) == type('') and type(Oprand2) == type(''):
+            if isinstance(Oprand1, type('')) and isinstance(Oprand2, type('')):
                 if (Oprand1.startswith('L"') and not Oprand2.startswith('L"')) 
or \
                     (not Oprand1.startswith('L"') and 
Oprand2.startswith('L"')):
                     raise BadExpression(ERR_STRING_CMP % (Oprand1, Operator, 
Oprand2))
-            if 'in' in Operator and type(Oprand2) == type(''):
+            if 'in' in Operator and isinstance(Oprand2, type('')):
                 Oprand2 = Oprand2.split()
             EvalStr = 'Oprand1 ' + Operator + ' Oprand2'
 
@@ -325,7 +325,7 @@ class ValueExpression(BaseExpression):
     def __init__(self, Expression, SymbolTable={}):
         super(ValueExpression, self).__init__(self, Expression, SymbolTable)
         self._NoProcess = False
-        if type(Expression) != type(''):
+        if not isinstance(Expression, type('')):
             self._Expr = Expression
             self._NoProcess = True
             return
@@ -373,7 +373,7 @@ class ValueExpression(BaseExpression):
                 Token = self._GetToken()
             except BadExpression:
                 pass
-            if type(Token) == type('') and Token.startswith('{') and 
Token.endswith('}') and self._Idx >= self._Len:
+            if isinstance(Token, type('')) and Token.startswith('{') and 
Token.endswith('}') and self._Idx >= self._Len:
                 return self._Expr
 
             self._Idx = 0
@@ -381,7 +381,7 @@ class ValueExpression(BaseExpression):
 
         Val = self._ConExpr()
         RealVal = Val
-        if type(Val) == type(''):
+        if isinstance(Val, type('')):
             if Val == 'L""':
                 Val = False
             elif not Val:
@@ -640,7 +640,7 @@ class ValueExpression(BaseExpression):
                 Ex.Pcd = self._Token
                 raise Ex
             self._Token = ValueExpression(self._Symb[self._Token], 
self._Symb)(True, self._Depth+1)
-            if type(self._Token) != type(''):
+            if not isinstance(self._Token, type('')):
                 self._LiteralToken = hex(self._Token)
                 return
 
@@ -735,7 +735,7 @@ class ValueExpression(BaseExpression):
                 if Ch == ')':
                     TmpValue = self._Expr[Idx :self._Idx - 1]
                     TmpValue = ValueExpression(TmpValue)(True)
-                    TmpValue = '0x%x' % int(TmpValue) if type(TmpValue) != 
type('') else TmpValue
+                    TmpValue = '0x%x' % int(TmpValue) if not 
isinstance(TmpValue, type('')) else TmpValue
                     break
             self._Token, Size = ParseFieldValue(Prefix + '(' + TmpValue + ')')
             return  self._Token
@@ -824,7 +824,7 @@ class ValueExpressionEx(ValueExpression):
                 PcdValue = PcdValue.strip()
                 if PcdValue.startswith('{') and PcdValue.endswith('}'):
                     PcdValue = SplitPcdValueString(PcdValue[1:-1])
-                if type(PcdValue) == type([]):
+                if isinstance(PcdValue, type([])):
                     TmpValue = 0
                     Size = 0
                     ValueType = ''
@@ -863,7 +863,7 @@ class ValueExpressionEx(ValueExpression):
                         else:
                             ItemValue = ParseFieldValue(Item)[0]
 
-                        if type(ItemValue) == type(''):
+                        if isinstance(ItemValue, type('')):
                             ItemValue = int(ItemValue, 0)
 
                         TmpValue = (ItemValue << (Size * 8)) | TmpValue
@@ -873,7 +873,7 @@ class ValueExpressionEx(ValueExpression):
                         TmpValue, Size = ParseFieldValue(PcdValue)
                     except BadExpression as Value:
                         raise BadExpression("Type: %s, Value: %s, %s" % 
(self.PcdType, PcdValue, Value))
-                if type(TmpValue) == type(''):
+                if isinstance(TmpValue, type('')):
                     try:
                         TmpValue = int(TmpValue)
                     except:
@@ -996,7 +996,7 @@ class ValueExpressionEx(ValueExpression):
                                     TmpValue = ValueExpressionEx(Item, 
ValueType, self._Symb)(True)
                                 else:
                                     TmpValue = ValueExpressionEx(Item, 
self.PcdType, self._Symb)(True)
-                                Item = '0x%x' % TmpValue if type(TmpValue) != 
type('') else TmpValue
+                                Item = '0x%x' % TmpValue if not 
isinstance(TmpValue, type('')) else TmpValue
                                 if ItemSize == 0:
                                     ItemValue, ItemSize = ParseFieldValue(Item)
                                     if Item[0] not in {'"', 'L', '{'} and 
ItemSize > 1:
diff --git a/BaseTools/Source/Python/Common/Misc.py 
b/BaseTools/Source/Python/Common/Misc.py
index 739a2b0cb45b..b3989270afc4 100644
--- a/BaseTools/Source/Python/Common/Misc.py
+++ b/BaseTools/Source/Python/Common/Misc.py
@@ -1292,9 +1292,9 @@ def ParseDevPathValue (Value):
     return '{' + out + '}', Size
 
 def ParseFieldValue (Value):
-    if type(Value) == type(0):
+    if isinstance(Value, type(0)):
         return Value, (Value.bit_length() + 7) / 8
-    if type(Value) != type(''):
+    if not isinstance(Value, type('')):
         raise BadExpression('Type %s is %s' %(Value, type(Value)))
     Value = Value.strip()
     if Value.startswith(TAB_UINT8) and Value.endswith(')'):
@@ -1585,8 +1585,7 @@ def CheckPcdDatum(Type, Value):
             Printset.add(TAB_PRINTCHAR_BS)
             Printset.add(TAB_PRINTCHAR_NUL)
             if not set(Value).issubset(Printset):
-                PrintList = list(Printset)
-                PrintList.sort()
+                PrintList = sorted(Printset)
                 return False, "Invalid PCD string value of type [%s]; must be 
printable chars %s." % (Type, PrintList)
     elif Type == 'BOOLEAN':
         if Value not in ['TRUE', 'True', 'true', '0x1', '0x01', '1', 'FALSE', 
'False', 'false', '0x0', '0x00', '0']:
@@ -1748,7 +1747,7 @@ class PathClass(object):
     # @retval True  The two PathClass are the same
     #
     def __eq__(self, Other):
-        if type(Other) == type(self):
+        if isinstance(Other, type(self)):
             return self.Path == Other.Path
         else:
             return self.Path == str(Other)
@@ -1761,7 +1760,7 @@ class PathClass(object):
     # @retval -1    The first PathClass is less than the second PathClass
     # @retval 1     The first PathClass is Bigger than the second PathClass
     def __cmp__(self, Other):
-        if type(Other) == type(self):
+        if isinstance(Other, type(self)):
             OtherKey = Other.Path
         else:
             OtherKey = str(Other)
@@ -2011,7 +2010,7 @@ class SkuClass():
             return ["DEFAULT"]
         skulist = [sku]
         nextsku = sku
-        while 1:
+        while True:
             nextsku = self.GetNextSkuId(nextsku)
             skulist.append(nextsku)
             if nextsku == "DEFAULT":
diff --git a/BaseTools/Source/Python/Common/RangeExpression.py 
b/BaseTools/Source/Python/Common/RangeExpression.py
index d02e52f349b0..e5ba5d7ad163 100644
--- a/BaseTools/Source/Python/Common/RangeExpression.py
+++ b/BaseTools/Source/Python/Common/RangeExpression.py
@@ -98,7 +98,7 @@ class XOROperatorObject(object):
     def __init__(self):     
         pass
     def Calculate(self, Operand, DataType, SymbolTable): 
-        if type(Operand) == type('') and not Operand.isalnum():
+        if isinstance(Operand, type('')) and not Operand.isalnum():
             Expr = "XOR ..."
             raise BadExpression(ERR_SNYTAX % Expr)
         rangeId = str(uuid.uuid1())
@@ -112,7 +112,7 @@ class LEOperatorObject(object):
     def __init__(self):     
         pass
     def Calculate(self, Operand, DataType, SymbolTable): 
-        if type(Operand) == type('') and not Operand.isalnum():
+        if isinstance(Operand, type('')) and not Operand.isalnum():
             Expr = "LE ..."
             raise BadExpression(ERR_SNYTAX % Expr)
         rangeId1 = str(uuid.uuid1())
@@ -124,7 +124,7 @@ class LTOperatorObject(object):
     def __init__(self):     
         pass
     def Calculate(self, Operand, DataType, SymbolTable):
-        if type(Operand) == type('') and not Operand.isalnum():
+        if isinstance(Operand, type('')) and not Operand.isalnum():
             Expr = "LT ..." 
             raise BadExpression(ERR_SNYTAX % Expr) 
         rangeId1 = str(uuid.uuid1())
@@ -137,7 +137,7 @@ class GEOperatorObject(object):
     def __init__(self):     
         pass
     def Calculate(self, Operand, DataType, SymbolTable): 
-        if type(Operand) == type('') and not Operand.isalnum():
+        if isinstance(Operand, type('')) and not Operand.isalnum():
             Expr = "GE ..."
             raise BadExpression(ERR_SNYTAX % Expr)
         rangeId1 = str(uuid.uuid1())
@@ -150,7 +150,7 @@ class GTOperatorObject(object):
     def __init__(self):     
         pass
     def Calculate(self, Operand, DataType, SymbolTable): 
-        if type(Operand) == type('') and not Operand.isalnum():
+        if isinstance(Operand, type('')) and not Operand.isalnum():
             Expr = "GT ..."
             raise BadExpression(ERR_SNYTAX % Expr)
         rangeId1 = str(uuid.uuid1())
@@ -163,7 +163,7 @@ class EQOperatorObject(object):
     def __init__(self):     
         pass
     def Calculate(self, Operand, DataType, SymbolTable): 
-        if type(Operand) == type('') and not Operand.isalnum():
+        if isinstance(Operand, type('')) and not Operand.isalnum():
             Expr = "EQ ..."
             raise BadExpression(ERR_SNYTAX % Expr)
         rangeId1 = str(uuid.uuid1())
@@ -351,7 +351,7 @@ class RangeExpression(BaseExpression):
     def __init__(self, Expression, PcdDataType, SymbolTable = {}):
         super(RangeExpression, self).__init__(self, Expression, PcdDataType, 
SymbolTable)
         self._NoProcess = False
-        if type(Expression) != type(''):
+        if not isinstance(Expression, type('')):
             self._Expr = Expression
             self._NoProcess = True
             return
@@ -572,7 +572,7 @@ class RangeExpression(BaseExpression):
                 Ex.Pcd = self._Token
                 raise Ex
             self._Token = RangeExpression(self._Symb[self._Token], 
self._Symb)(True, self._Depth + 1)
-            if type(self._Token) != type(''):
+            if not isinstance(self._Token, type('')):
                 self._LiteralToken = hex(self._Token)
                 return
 
diff --git a/BaseTools/Source/Python/Common/StringUtils.py 
b/BaseTools/Source/Python/Common/StringUtils.py
index e9ac77dc71a1..2f45bc3674cc 100644
--- a/BaseTools/Source/Python/Common/StringUtils.py
+++ b/BaseTools/Source/Python/Common/StringUtils.py
@@ -252,7 +252,7 @@ def SplitModuleType(Key):
 def ReplaceMacros(StringList, MacroDefinitions={}, SelfReplacement=False):
     NewList = []
     for String in StringList:
-        if type(String) == type(''):
+        if isinstance(String, type('')):
             NewList.append(ReplaceMacro(String, MacroDefinitions, 
SelfReplacement))
         else:
             NewList.append(String)
@@ -794,7 +794,7 @@ def RemoveBlockComment(Lines):
 # Get String of a List
 #
 def GetStringOfList(List, Split=' '):
-    if type(List) != type([]):
+    if not isinstance(List, type([])):
         return List
     Str = ''
     for Item in List:
diff --git a/BaseTools/Source/Python/Common/ToolDefClassObject.py 
b/BaseTools/Source/Python/Common/ToolDefClassObject.py
index d79b970f5416..dec48b3f295b 100644
--- a/BaseTools/Source/Python/Common/ToolDefClassObject.py
+++ b/BaseTools/Source/Python/Common/ToolDefClassObject.py
@@ -159,7 +159,7 @@ class ToolDefClassObject(object):
                             if ErrorCode != 0:
                                 EdkLogger.error("tools_def.txt parser", 
FILE_NOT_FOUND, ExtraData=IncFile)
 
-                    if type(IncFileTmp) is PathClass:
+                    if isinstance(IncFileTmp, PathClass):
                         IncFile = IncFileTmp.Path
                     else:
                         IncFile = IncFileTmp
diff --git a/BaseTools/Source/Python/Common/VpdInfoFile.py 
b/BaseTools/Source/Python/Common/VpdInfoFile.py
index 93175d41e9f7..b98c021b5777 100644
--- a/BaseTools/Source/Python/Common/VpdInfoFile.py
+++ b/BaseTools/Source/Python/Common/VpdInfoFile.py
@@ -127,8 +127,7 @@ class VpdInfoFile:
                             "Invalid parameter FilePath: %s." % FilePath)      
  
 
         Content = FILE_COMMENT_TEMPLATE
-        Pcds = self._VpdArray.keys()
-        Pcds.sort()
+        Pcds = sorted(self._VpdArray.keys())
         for Pcd in Pcds:
             i = 0
             PcdTokenCName = Pcd.TokenCName
diff --git a/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaFileParser.py 
b/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaFileParser.py
index 38662c929293..003a3f6559fa 100644
--- a/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaFileParser.py
+++ b/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaFileParser.py
@@ -69,7 +69,7 @@ def ParseMacro(Parser):
         self._ItemType = MODEL_META_DATA_DEFINE
         # DEFINE defined macros
         if Type == TAB_DSC_DEFINES_DEFINE:
-            if type(self) == DecParser:
+            if isinstance(self, DecParser):
                 if MODEL_META_DATA_HEADER in self._SectionType:
                     self._FileLocalMacros[Name] = Value
                 else:
@@ -84,7 +84,7 @@ def ParseMacro(Parser):
                 SectionLocalMacros = self._SectionsMacroDict[SectionDictKey]
                 SectionLocalMacros[Name] = Value
         # EDK_GLOBAL defined macros
-        elif type(self) != DscParser:
+        elif not isinstance(self, DscParser):
             EdkLogger.error('Parser', FORMAT_INVALID, "EDK_GLOBAL can only be 
used in .dsc file",
                             ExtraData=self._CurrentLine, File=self.MetaFile, 
Line=self._LineIndex+1)
         elif self._SectionType != MODEL_META_DATA_HEADER:
@@ -216,7 +216,7 @@ class MetaFileParser(object):
     #   DataInfo = [data_type, scope1(arch), scope2(platform/moduletype)]
     #
     def __getitem__(self, DataInfo):
-        if type(DataInfo) != type(()):
+        if not isinstance(DataInfo, type(())):
             DataInfo = (DataInfo,)
 
         # Parse the file first, if necessary
@@ -258,7 +258,7 @@ class MetaFileParser(object):
         TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT)
         self._ValueList[0:len(TokenList)] = TokenList
         # Don't do macro replacement for dsc file at this point
-        if type(self) != DscParser:
+        if not isinstance(self, DscParser):
             Macros = self._Macros
             self._ValueList = [ReplaceMacro(Value, Macros) for Value in 
self._ValueList]
 
@@ -356,7 +356,7 @@ class MetaFileParser(object):
             if os.path.exists(UniFile):
                 self._UniObj = UniParser(UniFile, IsExtraUni=False, 
IsModuleUni=False)
         
-        if type(self) == InfParser and self._Version < 0x00010005:
+        if isinstance(self, InfParser) and self._Version < 0x00010005:
             # EDK module allows using defines as macros
             self._FileLocalMacros[Name] = Value
         self._Defines[Name] = Value
@@ -371,7 +371,7 @@ class MetaFileParser(object):
             self._ValueList[1] = TokenList2[1]              # keys
         else:
             self._ValueList[1] = TokenList[0]
-        if len(TokenList) == 2 and type(self) != DscParser: # value
+        if len(TokenList) == 2 and not isinstance(self, DscParser): # value
             self._ValueList[2] = ReplaceMacro(TokenList[1], self._Macros)
 
         if self._ValueList[1].count('_') != 4:
diff --git a/BaseTools/Source/Python/Ecc/Xml/XmlRoutines.py 
b/BaseTools/Source/Python/Ecc/Xml/XmlRoutines.py
index 811106133cb4..1e45806fa657 100644
--- a/BaseTools/Source/Python/Ecc/Xml/XmlRoutines.py
+++ b/BaseTools/Source/Python/Ecc/Xml/XmlRoutines.py
@@ -35,7 +35,7 @@ def CreateXmlElement(Name, String, NodeList, AttributeList):
         Element.appendChild(Doc.createTextNode(String))
     
     for Item in NodeList:
-        if type(Item) == type([]):
+        if isinstance(Item, type([])):
             Key = Item[0]
             Value = Item[1]
             if Key != '' and Key is not None and Value != '' and Value is not 
None:
diff --git a/BaseTools/Source/Python/Eot/Parser.py 
b/BaseTools/Source/Python/Eot/Parser.py
index ff88e957ad0d..0b720d5b2187 100644
--- a/BaseTools/Source/Python/Eot/Parser.py
+++ b/BaseTools/Source/Python/Eot/Parser.py
@@ -730,7 +730,7 @@ def GetParameter(Parameter, Index = 1):
 #  @return: The name of parameter
 #
 def GetParameterName(Parameter):
-    if type(Parameter) == type('') and Parameter.startswith('&'):
+    if isinstance(Parameter, type('')) and Parameter.startswith('&'):
         return Parameter[1:].replace('{', '').replace('}', '').replace('\r', 
'').replace('\n', '').strip()
     else:
         return Parameter.strip()
diff --git a/BaseTools/Source/Python/GenFds/FdfParser.py 
b/BaseTools/Source/Python/GenFds/FdfParser.py
index 88ba70b400d2..22f430894d47 100644
--- a/BaseTools/Source/Python/GenFds/FdfParser.py
+++ b/BaseTools/Source/Python/GenFds/FdfParser.py
@@ -905,7 +905,7 @@ class FdfParser:
         MacroDict.update(GlobalData.gCommandLineDefines)
         if GlobalData.BuildOptionPcd:
             for Item in GlobalData.BuildOptionPcd:
-                if type(Item) is tuple:
+                if isinstance(Item, tuple):
                     continue
                 PcdName, TmpValue = Item.split("=")
                 TmpValue = BuildOptionValue(TmpValue, {})
diff --git a/BaseTools/Source/Python/GenFds/GenFds.py 
b/BaseTools/Source/Python/GenFds/GenFds.py
index 6b6511915eb3..1abebea5fdc6 100644
--- a/BaseTools/Source/Python/GenFds/GenFds.py
+++ b/BaseTools/Source/Python/GenFds/GenFds.py
@@ -786,7 +786,7 @@ class GenFds :
                         if not Name:
                             continue
 
-                        Name = ' '.join(Name) if type(Name) == type([]) else 
Name
+                        Name = ' '.join(Name) if isinstance(Name, type([])) 
else Name
                         GuidXRefFile.write("%s %s\n" %(FileStatementGuid, 
Name))
 
        # Append GUIDs, Protocols, and PPIs to the Xref file
diff --git a/BaseTools/Source/Python/TargetTool/TargetTool.py 
b/BaseTools/Source/Python/TargetTool/TargetTool.py
index ed567b870816..26d2bb9ebfce 100644
--- a/BaseTools/Source/Python/TargetTool/TargetTool.py
+++ b/BaseTools/Source/Python/TargetTool/TargetTool.py
@@ -83,7 +83,7 @@ class TargetTool():
     def Print(self):
         errMsg  = ''
         for Key in self.TargetTxtDictionary:
-            if type(self.TargetTxtDictionary[Key]) == type([]):
+            if isinstance(self.TargetTxtDictionary[Key], type([])):
                 print("%-30s = %s" % (Key, ''.join(elem + ' ' for elem in 
self.TargetTxtDictionary[Key])))
             elif self.TargetTxtDictionary[Key] is None:
                 errMsg += "  Missing %s configuration information, please use 
TargetTool to set value!" % Key + os.linesep 
diff --git a/BaseTools/Source/Python/UPT/GenMetaFile/GenDecFile.py 
b/BaseTools/Source/Python/UPT/GenMetaFile/GenDecFile.py
index 9397359367e7..a1a9d38087ee 100644
--- a/BaseTools/Source/Python/UPT/GenMetaFile/GenDecFile.py
+++ b/BaseTools/Source/Python/UPT/GenMetaFile/GenDecFile.py
@@ -123,8 +123,7 @@ def GenPcd(Package, Content):
         if Pcd.GetSupModuleList():
             Statement += GenDecTailComment(Pcd.GetSupModuleList())
 
-        ArchList = Pcd.GetSupArchList()
-        ArchList.sort()
+        ArchList = sorted(Pcd.GetSupArchList())
         SortedArch = ' '.join(ArchList)
         if SortedArch in NewSectionDict:
             NewSectionDict[SortedArch] = \
@@ -205,8 +204,7 @@ def GenGuidProtocolPpi(Package, Content):
         #
         if Guid.GetSupModuleList():
             Statement += GenDecTailComment(Guid.GetSupModuleList())     
-        ArchList = Guid.GetSupArchList()
-        ArchList.sort()
+        ArchList = sorted(Guid.GetSupArchList())
         SortedArch = ' '.join(ArchList)
         if SortedArch in NewSectionDict:
             NewSectionDict[SortedArch] = \
@@ -246,8 +244,7 @@ def GenGuidProtocolPpi(Package, Content):
         #
         if Protocol.GetSupModuleList():
             Statement += GenDecTailComment(Protocol.GetSupModuleList())
-        ArchList = Protocol.GetSupArchList()
-        ArchList.sort()
+        ArchList = sorted(Protocol.GetSupArchList())
         SortedArch = ' '.join(ArchList)
         if SortedArch in NewSectionDict:
             NewSectionDict[SortedArch] = \
@@ -287,8 +284,7 @@ def GenGuidProtocolPpi(Package, Content):
         #
         if Ppi.GetSupModuleList():
             Statement += GenDecTailComment(Ppi.GetSupModuleList())
-        ArchList = Ppi.GetSupArchList()
-        ArchList.sort()
+        ArchList = sorted(Ppi.GetSupArchList())
         SortedArch = ' '.join(ArchList)
         if SortedArch in NewSectionDict:
             NewSectionDict[SortedArch] = \
@@ -463,8 +459,7 @@ def PackageToDec(Package, DistHeader = None):
         if LibraryClass.GetSupModuleList():
             Statement += \
             GenDecTailComment(LibraryClass.GetSupModuleList())
-        ArchList = LibraryClass.GetSupArchList()
-        ArchList.sort()
+        ArchList = sorted(LibraryClass.GetSupArchList())
         SortedArch = ' '.join(ArchList)
         if SortedArch in NewSectionDict:
             NewSectionDict[SortedArch] = \
diff --git a/BaseTools/Source/Python/UPT/GenMetaFile/GenInfFile.py 
b/BaseTools/Source/Python/UPT/GenMetaFile/GenInfFile.py
index 3d403ecbe09b..0bedea6a60c4 100644
--- a/BaseTools/Source/Python/UPT/GenMetaFile/GenInfFile.py
+++ b/BaseTools/Source/Python/UPT/GenMetaFile/GenInfFile.py
@@ -494,8 +494,7 @@ def GenPackages(ModuleObject):
         Statement += RelaPath.replace('\\', '/')
         if FFE:
             Statement += '|' + FFE
-        ArchList = PackageDependency.GetSupArchList()
-        ArchList.sort()
+        ArchList = sorted(PackageDependency.GetSupArchList())
         SortedArch = ' '.join(ArchList)
         if SortedArch in NewSectionDict:
             NewSectionDict[SortedArch] = NewSectionDict[SortedArch] + 
[Statement]
@@ -514,8 +513,7 @@ def GenSources(ModuleObject):
         SourceFile = Source.GetSourceFile()
         Family = Source.GetFamily()
         FeatureFlag = Source.GetFeatureFlag()
-        SupArchList = Source.GetSupArchList()
-        SupArchList.sort()
+        SupArchList = sorted(Source.GetSupArchList())
         SortedArch = ' '.join(SupArchList)
         Statement = GenSourceStatement(ConvertPath(SourceFile), Family, 
FeatureFlag)
         if SortedArch in NewSectionDict:
@@ -723,8 +721,7 @@ def GenGuidSections(GuidObjList):
         #
         # merge duplicate items
         #
-        ArchList = Guid.GetSupArchList()
-        ArchList.sort()
+        ArchList = sorted(Guid.GetSupArchList())
         SortedArch = ' '.join(ArchList)
         if (Statement, SortedArch) in GuidDict:
             PreviousComment = GuidDict[Statement, SortedArch]
@@ -783,8 +780,7 @@ def GenProtocolPPiSections(ObjList, IsProtocol):
         #
         # merge duplicate items
         #
-        ArchList = Object.GetSupArchList()
-        ArchList.sort()
+        ArchList = sorted(Object.GetSupArchList())
         SortedArch = ' '.join(ArchList)
         if (Statement, SortedArch) in Dict:
             PreviousComment = Dict[Statement, SortedArch]
@@ -858,8 +854,7 @@ def GenPcdSections(ModuleObject):
             #
             # Merge duplicate entries
             #
-            ArchList = Pcd.GetSupArchList()
-            ArchList.sort()
+            ArchList = sorted(Pcd.GetSupArchList())
             SortedArch = ' '.join(ArchList)
             if (Statement, SortedArch) in Dict:
                 PreviousComment = Dict[Statement, SortedArch]
@@ -1026,8 +1021,7 @@ def GenSpecialSections(ObjectList, SectionName, 
UserExtensionsContent=''):
         if CommentStr and not CommentStr.endswith('\n#\n'):
             CommentStr = CommentStr + '#\n'
         NewStateMent = CommentStr + Statement
-        SupArch = Obj.GetSupArchList()
-        SupArch.sort()
+        SupArch = sorted(Obj.GetSupArchList())
         SortedArch = ' '.join(SupArch)
         if SortedArch in NewSectionDict:
             NewSectionDict[SortedArch] = NewSectionDict[SortedArch] + 
[NewStateMent]
@@ -1105,8 +1099,7 @@ def GenBinaries(ModuleObject):
             FileName = ConvertPath(FileNameObj.GetFilename())
             FileType = FileNameObj.GetFileType()
             FFE = FileNameObj.GetFeatureFlag()
-            ArchList = FileNameObj.GetSupArchList()
-            ArchList.sort()
+            ArchList = sorted(FileNameObj.GetSupArchList())
             SortedArch = ' '.join(ArchList)
             Key = (FileName, FileType, FFE, SortedArch)
             if Key in BinariesDict:
diff --git a/BaseTools/Source/Python/UPT/Library/Misc.py 
b/BaseTools/Source/Python/UPT/Library/Misc.py
index 733abc6ff5de..a690942811a0 100644
--- a/BaseTools/Source/Python/UPT/Library/Misc.py
+++ b/BaseTools/Source/Python/UPT/Library/Misc.py
@@ -515,7 +515,7 @@ class PathClass(object):
     # Check whether PathClass are the same
     #
     def __eq__(self, Other):
-        if type(Other) == type(self):
+        if isinstance(Other, type(self)):
             return self.Path == Other.Path
         else:
             return self.Path == str(Other)
@@ -820,11 +820,11 @@ def ConvertArchList(ArchList):
     if not ArchList:
         return NewArchList
 
-    if type(ArchList) == list:
+    if isinstance(ArchList, list):
         for Arch in ArchList:
             Arch = Arch.upper()
             NewArchList.append(Arch)
-    elif type(ArchList) == str:
+    elif isinstance(ArchList, str):
         ArchList = ArchList.upper()
         NewArchList.append(ArchList)
 
diff --git a/BaseTools/Source/Python/UPT/Library/ParserValidate.py 
b/BaseTools/Source/Python/UPT/Library/ParserValidate.py
index 3f8ca9d609ae..dc93cedd917e 100644
--- a/BaseTools/Source/Python/UPT/Library/ParserValidate.py
+++ b/BaseTools/Source/Python/UPT/Library/ParserValidate.py
@@ -341,7 +341,7 @@ def IsValidCFormatGuid(Guid):
                 #
                 # Index may out of bound
                 #
-                if type(List[Index]) != type(1) or \
+                if not isinstance(List[Index], type(1)) or \
                    len(Value) > List[Index] or len(Value) < 3:
                     return False
                 
diff --git a/BaseTools/Source/Python/UPT/Library/StringUtils.py 
b/BaseTools/Source/Python/UPT/Library/StringUtils.py
index 1003ffa673de..339894ee0940 100644
--- a/BaseTools/Source/Python/UPT/Library/StringUtils.py
+++ b/BaseTools/Source/Python/UPT/Library/StringUtils.py
@@ -652,7 +652,7 @@ def ConvertToSqlString2(String):
 # @param Split: split character
 #
 def GetStringOfList(List, Split=' '):
-    if type(List) != type([]):
+    if not isinstance(List, type([])):
         return List
     Str = ''
     for Item in List:
diff --git a/BaseTools/Source/Python/UPT/Library/Xml/XmlRoutines.py 
b/BaseTools/Source/Python/UPT/Library/Xml/XmlRoutines.py
index 1096bc5b1849..dbaee678af45 100644
--- a/BaseTools/Source/Python/UPT/Library/Xml/XmlRoutines.py
+++ b/BaseTools/Source/Python/UPT/Library/Xml/XmlRoutines.py
@@ -40,7 +40,7 @@ def CreateXmlElement(Name, String, NodeList, AttributeList):
         Element.appendChild(Doc.createTextNode(String))
 
     for Item in NodeList:
-        if type(Item) == type([]):
+        if isinstance(Item, type([])):
             Key = Item[0]
             Value = Item[1]
             if Key != '' and Key is not None and Value != '' and Value is not 
None:
diff --git a/BaseTools/Source/Python/UPT/PomAdapter/DecPomAlignment.py 
b/BaseTools/Source/Python/UPT/PomAdapter/DecPomAlignment.py
index 1e0c79d6677d..bcc5d96f9153 100644
--- a/BaseTools/Source/Python/UPT/PomAdapter/DecPomAlignment.py
+++ b/BaseTools/Source/Python/UPT/PomAdapter/DecPomAlignment.py
@@ -410,8 +410,7 @@ class DecPomAlignment(PackageObject):
         # 
         PackagePath = os.path.split(self.GetFullPath())[0]
         IncludePathList = \
-            [os.path.normpath(Path) + sep for Path in IncludesDict.keys()]
-        IncludePathList.sort()
+            sorted([os.path.normpath(Path) + sep for Path in 
IncludesDict.keys()])
         
         #
         # get a non-overlap set of include path, IncludePathList should be 
diff --git a/BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignment.py 
b/BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignment.py
index a5929e15de2d..84f0d43f015e 100644
--- a/BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignment.py
+++ b/BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignment.py
@@ -611,8 +611,7 @@ class InfPomAlignment(ModuleObject):
                 SourceFile = Item.GetSourceFileName()
                 Family = Item.GetFamily()
                 FeatureFlag = Item.GetFeatureFlagExp()
-                SupArchList = ConvertArchList(Item.GetSupArchList())
-                SupArchList.sort()
+                SupArchList = sorted(ConvertArchList(Item.GetSupArchList()))
                 Source = SourceFileObject()
                 Source.SetSourceFile(SourceFile)
                 Source.SetFamily(Family)
diff --git a/BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignmentMisc.py 
b/BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignmentMisc.py
index cee42516231c..3bb506bea660 100644
--- a/BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignmentMisc.py
+++ b/BaseTools/Source/Python/UPT/PomAdapter/InfPomAlignmentMisc.py
@@ -194,8 +194,7 @@ def GenBinaryData(BinaryData, BinaryObj, BinariesDict, 
AsBuildIns, BinaryFileObj
         # can be used for the attribute.
         # If both not have VALID_ARCHITECTURE comment and no architecturie 
specified, then keep it empty.
         #        
-        SupArchList = ConvertArchList(ItemObj.GetSupArchList())
-        SupArchList.sort()
+        SupArchList = sorted(ConvertArchList(ItemObj.GetSupArchList()))
         if len(SupArchList) == 1 and SupArchList[0] == 'COMMON':
             if not (len(OriSupArchList) == 1 or OriSupArchList[0] == 'COMMON'):
                 SupArchList = OriSupArchList
diff --git a/BaseTools/Source/Python/Workspace/BuildClassObject.py 
b/BaseTools/Source/Python/Workspace/BuildClassObject.py
index 2569235fb875..c188b47534f8 100644
--- a/BaseTools/Source/Python/Workspace/BuildClassObject.py
+++ b/BaseTools/Source/Python/Workspace/BuildClassObject.py
@@ -217,7 +217,7 @@ class StructurePcd(PcdClassObject):
         self.DscRawValue = PcdObject.DscRawValue if PcdObject.DscRawValue else 
self.DscRawValue
         self.PcdValueFromComm = PcdObject.PcdValueFromComm if 
PcdObject.PcdValueFromComm else self.PcdValueFromComm
         self.DefinitionPosition = PcdObject.DefinitionPosition if 
PcdObject.DefinitionPosition else self.DefinitionPosition
-        if type(PcdObject) is StructurePcd:
+        if isinstance(PcdObject, StructurePcd):
             self.StructuredPcdIncludeFile = PcdObject.StructuredPcdIncludeFile 
if PcdObject.StructuredPcdIncludeFile else self.StructuredPcdIncludeFile
             self.PackageDecs = PcdObject.PackageDecs if PcdObject.PackageDecs 
else self.PackageDecs
             self.DefaultValues = PcdObject.DefaultValues if 
PcdObject.DefaultValues else self.DefaultValues
diff --git a/BaseTools/Source/Python/Workspace/DscBuildData.py 
b/BaseTools/Source/Python/Workspace/DscBuildData.py
index bbc5af34eb9e..09002526b8b0 100644
--- a/BaseTools/Source/Python/Workspace/DscBuildData.py
+++ b/BaseTools/Source/Python/Workspace/DscBuildData.py
@@ -928,13 +928,13 @@ class DscBuildData(PlatformBuildClassObject):
             for pcdname in Pcds:
                 pcd = Pcds[pcdname]
                 Pcds[pcdname].SkuInfoList = 
{TAB_DEFAULT:pcd.SkuInfoList[skuid] for skuid in pcd.SkuInfoList if skuid in 
available_sku}
-                if type(pcd) is StructurePcd and pcd.SkuOverrideValues:
+                if isinstance(pcd, StructurePcd) and pcd.SkuOverrideValues:
                     Pcds[pcdname].SkuOverrideValues = 
{TAB_DEFAULT:pcd.SkuOverrideValues[skuid] for skuid in pcd.SkuOverrideValues if 
skuid in available_sku}
         else:
             for pcdname in Pcds:
                 pcd = Pcds[pcdname]
                 Pcds[pcdname].SkuInfoList = {skuid:pcd.SkuInfoList[skuid] for 
skuid in pcd.SkuInfoList if skuid in available_sku}
-                if type(pcd) is StructurePcd and pcd.SkuOverrideValues:
+                if isinstance(pcd, StructurePcd) and pcd.SkuOverrideValues:
                     Pcds[pcdname].SkuOverrideValues = 
{skuid:pcd.SkuOverrideValues[skuid] for skuid in pcd.SkuOverrideValues if skuid 
in available_sku}
         return Pcds
     def CompleteHiiPcdsDefaultStores(self, Pcds):
@@ -965,7 +965,7 @@ class DscBuildData(PlatformBuildClassObject):
     def __ParsePcdFromCommandLine(self):
         if GlobalData.BuildOptionPcd:
             for i, pcd in enumerate(GlobalData.BuildOptionPcd):
-                if type(pcd) is tuple:
+                if isinstance(pcd, tuple):
                     continue
                 (pcdname, pcdvalue) = pcd.split('=')
                 if not pcdvalue:
@@ -1321,7 +1321,7 @@ class DscBuildData(PlatformBuildClassObject):
                             File=self.MetaFile, Line = 
StrPcdSet[str_pcd][0][5])
         # Add the Structure PCD that only defined in DEC, don't have override 
in DSC file
         for Pcd in self.DecPcds:
-            if type (self._DecPcds[Pcd]) is StructurePcd:
+            if isinstance(self._DecPcds[Pcd], StructurePcd):
                 if Pcd not in S_pcd_set:
                     str_pcd_obj_str = StructurePcd()
                     str_pcd_obj_str.copy(self._DecPcds[Pcd])
diff --git a/BaseTools/Source/Python/Workspace/MetaFileParser.py 
b/BaseTools/Source/Python/Workspace/MetaFileParser.py
index ef2caf3b99bc..b05d381bdf1a 100644
--- a/BaseTools/Source/Python/Workspace/MetaFileParser.py
+++ b/BaseTools/Source/Python/Workspace/MetaFileParser.py
@@ -79,10 +79,10 @@ def ParseMacro(Parser):
             #
             # First judge whether this DEFINE is in conditional directive 
statements or not.
             #
-            if type(self) == DscParser and self._InDirective > -1:
+            if isinstance(self, DscParser) and self._InDirective > -1:
                 pass
             else:
-                if type(self) == DecParser:
+                if isinstance(self, DecParser):
                     if MODEL_META_DATA_HEADER in self._SectionType:
                         self._FileLocalMacros[Name] = Value
                     else:
@@ -93,7 +93,7 @@ def ParseMacro(Parser):
                     self._ConstructSectionMacroDict(Name, Value)
 
         # EDK_GLOBAL defined macros
-        elif type(self) != DscParser:
+        elif not isinstance(self, DscParser):
             EdkLogger.error('Parser', FORMAT_INVALID, "EDK_GLOBAL can only be 
used in .dsc file",
                             ExtraData=self._CurrentLine, File=self.MetaFile, 
Line=self._LineIndex + 1)
         elif self._SectionType != MODEL_META_DATA_HEADER:
@@ -234,7 +234,7 @@ class MetaFileParser(object):
     #   DataInfo = [data_type, scope1(arch), scope2(platform/moduletype)]
     #
     def __getitem__(self, DataInfo):
-        if type(DataInfo) != type(()):
+        if not isinstance(DataInfo, type(())):
             DataInfo = (DataInfo,)
 
         # Parse the file first, if necessary
@@ -276,7 +276,7 @@ class MetaFileParser(object):
         TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT)
         self._ValueList[0:len(TokenList)] = TokenList
         # Don't do macro replacement for dsc file at this point
-        if type(self) != DscParser:
+        if not isinstance(self, DscParser):
             Macros = self._Macros
             self._ValueList = [ReplaceMacro(Value, Macros) for Value in 
self._ValueList]
 
@@ -383,7 +383,7 @@ class MetaFileParser(object):
                 EdkLogger.error('Parser', FORMAT_INVALID, "Invalid version 
number",
                                 ExtraData=self._CurrentLine, 
File=self.MetaFile, Line=self._LineIndex + 1)
 
-        if type(self) == InfParser and self._Version < 0x00010005:
+        if isinstance(self, InfParser) and self._Version < 0x00010005:
             # EDK module allows using defines as macros
             self._FileLocalMacros[Name] = Value
         self._Defines[Name] = Value
@@ -399,7 +399,7 @@ class MetaFileParser(object):
             self._ValueList[1] = TokenList2[1]              # keys
         else:
             self._ValueList[1] = TokenList[0]
-        if len(TokenList) == 2 and type(self) != DscParser: # value
+        if len(TokenList) == 2 and not isinstance(self, DscParser): # value
             self._ValueList[2] = ReplaceMacro(TokenList[1], self._Macros)
 
         if self._ValueList[1].count('_') != 4:
@@ -427,7 +427,7 @@ class MetaFileParser(object):
         # DecParser SectionType is a list, will contain more than one item 
only in Pcd Section
         # As Pcd section macro usage is not alllowed, so here it is safe
         #
-        if type(self) == DecParser:
+        if isinstance(self, DecParser):
             SectionDictKey = self._SectionType[0], ScopeKey
         else:
             SectionDictKey = self._SectionType, ScopeKey
@@ -444,7 +444,7 @@ class MetaFileParser(object):
         SpeSpeMacroDict = {}
 
         ActiveSectionType = self._SectionType
-        if type(self) == DecParser:
+        if isinstance(self, DecParser):
             ActiveSectionType = self._SectionType[0]
 
         for (SectionType, Scope) in self._SectionsMacroDict:
@@ -1250,7 +1250,7 @@ class DscParser(MetaFileParser):
             Macros.update(self._Symbols)
         if GlobalData.BuildOptionPcd:
             for Item in GlobalData.BuildOptionPcd:
-                if type(Item) is tuple:
+                if isinstance(Item, tuple):
                     continue
                 PcdName, TmpValue = Item.split("=")
                 TmpValue = BuildOptionValue(TmpValue, self._GuidDict)
diff --git a/BaseTools/Source/Python/build/BuildReport.py 
b/BaseTools/Source/Python/build/BuildReport.py
index 454ea7d088b4..c9648a9299dd 100644
--- a/BaseTools/Source/Python/build/BuildReport.py
+++ b/BaseTools/Source/Python/build/BuildReport.py
@@ -1865,8 +1865,7 @@ class FdRegionReport(object):
                 for Match in gOffsetGuidPattern.finditer(FvReport):
                     Guid = Match.group(2).upper()
                     OffsetInfo[Match.group(1)] = self._GuidsDb.get(Guid, Guid)
-                OffsetList = OffsetInfo.keys()
-                OffsetList.sort()
+                OffsetList = sorted(OffsetInfo.keys())
                 for Offset in OffsetList:
                     FileWrite (File, "%s %s" % (Offset, OffsetInfo[Offset]))
             except IOError:
diff --git a/BaseTools/Source/Python/build/build.py 
b/BaseTools/Source/Python/build/build.py
index 49869d9ee4e6..bf1f853d56be 100644
--- a/BaseTools/Source/Python/build/build.py
+++ b/BaseTools/Source/Python/build/build.py
@@ -305,7 +305,7 @@ def LaunchCommand(Command, WorkingDir):
         if EndOfProcedure is not None:
             EndOfProcedure.set()
         if Proc is None:
-            if type(Command) != type(""):
+            if not isinstance(Command, type("")):
                 Command = " ".join(Command)
             EdkLogger.error("build", COMMAND_FAILURE, "Failed to start 
command", ExtraData="%s [%s]" % (Command, WorkingDir))
 
@@ -316,7 +316,7 @@ def LaunchCommand(Command, WorkingDir):
 
     # check the return code of the program
     if Proc.returncode != 0:
-        if type(Command) != type(""):
+        if not isinstance(Command, type("")):
             Command = " ".join(Command)
         # print out the Response file and its content when make failure
         RespFile = os.path.join(WorkingDir, 'OUTPUT', 'respfilelist.txt')
diff --git a/BaseTools/gcc/mingw-gcc-build.py b/BaseTools/gcc/mingw-gcc-build.py
index 3bf524123d0f..6a805ce51885 100755
--- a/BaseTools/gcc/mingw-gcc-build.py
+++ b/BaseTools/gcc/mingw-gcc-build.py
@@ -258,9 +258,9 @@ class SourceFiles:
             replaceables = ('extract-dir', 'filename', 'url')
             for replaceItem in fdata:
                 if replaceItem in replaceables: continue
-                if type(fdata[replaceItem]) != str: continue
+                if not isinstance(fdata[replaceItem], str): continue
                 for replaceable in replaceables:
-                    if type(fdata[replaceable]) != str: continue
+                    if not isinstance(fdata[replaceable], str): continue
                     if replaceable in fdata:
                         fdata[replaceable] = \
                             fdata[replaceable].replace(
-- 
2.17.1

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