diff --git a/execEx/03/SConstruct b/execEx/03/SConstruct
index 4694cc5..9404c56 100644
--- a/execEx/03/SConstruct
+++ b/execEx/03/SConstruct
@@ -16,9 +16,9 @@ Help("""
 
 """)
 
-#
-# Processing arguments
-#
+"""
+Processing arguments
+"""
 debugArg = ARGUMENTS.get('DEBUG', '1')
 if debugArg not in ['0', '1']:
   raise RuntimeError('Check the DEBUG input argument.')
@@ -30,9 +30,9 @@ if assertArg not in ['0', '1']:
 compilerName = ARGUMENTS.get('COMPILER', '')
 buildName = ARGUMENTS.get('BUILDNAME', 'default')
 
-#
-# Initializing the environment
-#
+"""
+Initializing the environment
+"""
 env = Environment(ENV=os.environ,
                   CC='clang',
                   CXX='clang++')
@@ -67,9 +67,9 @@ if assertArg == '0':
 
 env['CPPDEFINES'] = cppDefine
 
-#
-# Paths setup
-#
+"""
+Paths setup
+"""
 
 env.srcDir = Dir('#').abspath
 
@@ -80,9 +80,9 @@ VariantDir(variant_dir=env.buildDir,
            src_dir=env.srcDir,
            duplicate=0)
 
-#
-# Add build targets 
-#
+"""
+Add build targets 
+"""
 
 SConscript(os.path.join(env.buildDir, 'SConscript'),
            exports={'env' : env})