Add python3 support

Since cpython 2 has bugs that won't be fixed on Windows, we have to move
to python 3

Change-Id: I765f17008d1470d6eacb69d259211847a5fbecaf
Partial-Bug: #1737177

lib/rapidjson/SConscript

@@ -40,11 +40,9 @@ rapidjson_headers = [
 
 ]
 
-rapidjson_headers = map(
-    lambda hdr: Command('#build/include/' + hdr, [], \
-                        Copy("$TARGET", \
-                             File('#third_party/rapidjson/include/' + hdr))),
-    rapidjson_headers)
+for hdr in rapidjson_headers:
+    Command('#build/include/' + hdr, [], \
+            Copy("$TARGET", File('#third_party/rapidjson/include/' + hdr)))
 
 # Local Variables:
 # mode: python

src/vnsw/agent/SConscript

@@ -31,7 +31,7 @@ env.Prepend(CPPPATH = env['TOP'] + '/tools/sandesh/library/common')
 
 # Function to append TOP level directory
 def AddTopDir(list):
-    return map(lambda x: Dir(env['TOP'] + '/' + x).abspath, list)
+    return [Dir(env['TOP'] + '/' + x).abspath for x in list]
 
 cpppath = [
     '',
@@ -63,7 +63,7 @@ env.Prepend(CPPPATH = AddTopDir(cpppath))
 # Build LIBPATH
 ##########################################################################
 def MapBuildDir(list):
-    return map(lambda x: Dir('../../' + x).abspath, list)
+    return [Dir('../../' + x).abspath for x in list]
 
 env.Append(LIBPATH = MapBuildDir([
     'base',

src/vnsw/agent/contrail/SConscript

@@ -29,7 +29,7 @@ buildinfo_dep_libs = [
 ]
 
 def MapBuildCmnLib(list):
-    return map(lambda x: File('../../../' + x).abspath, list)
+    return [File('../../../' + x).abspath for x in list]
 
 # Common contrail libraries
 buildinfo_dep_libs += MapBuildCmnLib([
@@ -55,7 +55,7 @@ buildinfo_dep_libs += MapBuildCmnLib([
 ])
 
 def MapBuildAgentLib(list):
-    return map(lambda x: File('../' + x).abspath, list)
+    return [File('../' + x).abspath for x in list]
 
 # agent libraries
 buildinfo_dep_libs += MapBuildAgentLib([
@@ -84,7 +84,7 @@ env.GenerateBuildInfoCode(
     target = ['buildinfo.h', 'buildinfo.cc'],
     source = [],
     path=str(Dir('.').abspath))
-build_obj = map(lambda x : env.Object(x), ['buildinfo.cc'])
+build_obj = [env.Object('buildinfo.cc')]
 
 # Add contrail-vrouter-agent specific libraries
 env.Prepend(LIBS = AgentEnv['CONTRAIL_LIBS'])

src/vnsw/agent/services/multicast/SConscript

@@ -14,7 +14,7 @@ env = AgentEnv.Clone()
 
 # Function to append TOP level directory
 def AddTopDir(list):
-    return map(lambda x: Dir('./' + x).abspath, list)
+    return [Dir('./' + x).abspath for x in list]
 
     asdf
 cpppath = [

src/vnsw/agent/test/SConscript

@@ -16,7 +16,7 @@ env = AgentEnv.Clone()
 AgentEnv.MakeTestEnv(env)
 
 targets = env.IFMapAutogen('test_cfg.xsd')
-lib_srcs = filter(lambda x: re.match(r'(.*)\.cc$', x.abspath), targets)
+lib_srcs = [x for x in targets if re.match(r'(.*)\.cc$', x.abspath)]
 env.Library('ifmap_test', lib_srcs)
 env.Library('control_node_mock', 'control_node_mock.cc');
 env.Library('agent_test_buildinfo', 'test_buildinfo.cc')