pythonidle解释和直接pythonscript.py解释有什么差别？

回复内容： 题主想的“逐行解释”与“整体解释”的差异的思路是对的，不过细节不太对。下面讲点细节。
跟Sublime、IDLE啥的没关系。

  $   python 
 Python   2.7  .  5   (  default  ,   Mar    9   2014  ,   22  :  15  :  05  )  
 [  GCC   4.2  .  1   Compatible   Apple   LLVM   5.0   (  clang  -  500.0  .  68  )]   on   darwin 
 Type   "help"  ,   "copyright"  ,   "credits"   or   "license"   for   more   information  . 
 >>>   a   =   10.1 
 >>>   b   =   10.1 
 >>>   a   is   b 
 False 
 >>>   id  (  a  ) 
 140475784803760 
 >>>   id  (  b  ) 
 140475784803736 
 >>>   (  10.1  )   is   (  10.1  ) 
 True 
 >>>   def   foo  (): 
 ...     a   =   10.1 
 ...     b   =   10.1 
 ...     return   a   is   b 
 ...  
 >>>   foo  () 
 True