comments about 'input_func'

Author: HidekiHokuto

dir_test.py

@@ -12,8 +12,8 @@
 
 
 def main():
-    if sys.version_info.major >= 3:
-        input_func = input
+    if sys.version_info.major >= 3: # if the interpreter version is 3.X, use 'input',
+        input_func = input          # otherwise use 'raw_input'
     else:
         input_func = raw_input