diff --git a/bsp/CME_M7/CMSIS/SConscript b/bsp/CME_M7/CMSIS/SConscript
index fc01453c4a1ba582b65227d37cf33ca489d5efdc..3891ee96d7bc531018456fa1e8a0857a787310d1 100644
--- a/bsp/CME_M7/CMSIS/SConscript
+++ b/bsp/CME_M7/CMSIS/SConscript
@@ -16,9 +16,9 @@ if rtconfig.CROSS_TOOL == 'gcc':
 elif rtconfig.CROSS_TOOL == 'keil':
     src += ['CME_M7/startup/arm/startup_cmem7.s']
 elif rtconfig.CROSS_TOOL == 'iar':
-    print '================ERROR============================'
-    print 'Not support IAR yet!'
-    print '================================================='
+    print('================ERROR============================')
+    print('Not support IAR yet!')
+    print('=================================================')
     exit(0)
 
 path = [cwd + '/CME_M7']
diff --git a/bsp/gd32450z-eval/Libraries/SConscript b/bsp/gd32450z-eval/Libraries/SConscript
index e4a83cde55c3db878c0933d171be387e4209ccc3..17944290406de383702bf92aa5260e8740d55d3e 100644
--- a/bsp/gd32450z-eval/Libraries/SConscript
+++ b/bsp/gd32450z-eval/Libraries/SConscript
@@ -11,9 +11,9 @@ src += [cwd + '/CMSIS/GD/GD32F4xx/Source/system_gd32f4xx.c']
 
 #add for startup script
 if rtconfig.CROSS_TOOL == 'gcc':
-    print '================================================='
-    print 'Not support gcc yet!'
-    print '================================================='
+    print('=================================================')
+    print('Not support gcc yet!')
+    print('=================================================')
     exit(0)
 elif rtconfig.CROSS_TOOL == 'keil':
     src += [cwd + '/CMSIS/GD/GD32F4xx/Source/ARM/startup_gd32f4xx.s']
diff --git a/bsp/lpc824/Libraries/SConscript b/bsp/lpc824/Libraries/SConscript
index 3ed5fd3b0c9bcba9e230e9162a3f1addd2cb6ecb..a013cdd077805748c99a02b28bfd1d4b1c8eab21 100644
--- a/bsp/lpc824/Libraries/SConscript
+++ b/bsp/lpc824/Libraries/SConscript
@@ -12,7 +12,7 @@ src += Glob('common/chip/*.c')
 
 # add for startup script 
 if rtconfig.CROSS_TOOL == 'gcc':
-    print "not gcc startup file"
+    print("not gcc startup file")
     exit(0)
 elif rtconfig.CROSS_TOOL == 'keil':
     src += [cwd + '/common/startup/keil_startup_lpc82x.s']
diff --git a/components/external/cairo/SConscript b/components/external/cairo/SConscript
index 2e3b5b78cd3ccd955bf5a93a5ba37e95289bf343..3c6651b9b757f2896b5489fbf9eda9cfde51f70a 100644
--- a/components/external/cairo/SConscript
+++ b/components/external/cairo/SConscript
@@ -6,9 +6,9 @@ CAIRO_PATH = 'cairo-' + CAIRO_VERSION
 cwd = GetCurrentDir()
 
 if GetDepend('RT_USING_CAIRO') and not os.path.exists(CAIRO_PATH):
-    print '================ERROR============================'
-    print 'Please get cairo dist and put them under cairo folder'
-    print '================================================='
+    print('================ERROR============================')
+    print('Please get cairo dist and put them under cairo folder')
+    print('=================================================')
     exit(0)
 
 # source files 
diff --git a/components/external/ftk/SConscript b/components/external/ftk/SConscript
index 2dd016d0d3d1557609432533406e6bb5b23ed0ae..2f4fbe1ec0aac67e432cd2838b507d89e6ef6975 100644
--- a/components/external/ftk/SConscript
+++ b/components/external/ftk/SConscript
@@ -8,9 +8,9 @@ if os.path.isfile(os.path.join(RTT_ROOT, 'components', 'external', 'ftk',
     objs = SConscript('ftk/src/os/rt-thread/SConscript')
 else:
     if GetDepend('RT_USING_FTK'):
-        print '================ERROR============================'
-        print 'Please get ftk file and put them under ftk folder'
-        print '================================================='
+        print('================ERROR============================')
+        print('Please get ftk file and put them under ftk folder')
+        print('=================================================')
         exit(0)
 
     objs = []
diff --git a/components/external/pixman/SConscript b/components/external/pixman/SConscript
index d52990a5dd701b8c5e823cf27621143edd6fe461..7ab5c50ce1334433b10b1bd68ebf6d53a5a28251 100644
--- a/components/external/pixman/SConscript
+++ b/components/external/pixman/SConscript
@@ -8,9 +8,9 @@ PIXMAN_VERSION = '0.21.6'
 PIXMAN_PATH = 'pixman-' + PIXMAN_VERSION
 
 if GetDepend('RT_USING_CAIRO') and not os.path.exists(PIXMAN_PATH):
-    print '================ERROR============================'
-    print 'Please get pixman dist and put them under pixman folder'
-    print '================================================='
+    print('================ERROR============================')
+    print('Please get pixman dist and put them under pixman folder')
+    print('=================================================')
     exit(0)
 
 # core source files