Is there any difference between print 3 and print '3' in Python ?

redstone-cold at 163.com redstone-cold at 163.com
Mon Mar 26 16:28:25 CEST 2012


在 2012年3月26日星期一UTC+8下午8时11分03秒,Dave Angel写道:
> On 03/26/2012 07:45 AM, redstone-cold at 163.com wrote:
> > I know the print statement produces the same result when both of these two instructions are executed ,I just want to know Is there any difference between print 3 and print '3' in Python ?
> 
> This is a non-question.  The input is the same, the output is the same, 
> what else matters?
> 
> On the other hand, if you want to dig deeper, there are lots of differences:
> 
> 1) the former has a shorter source file
> 2) different C code is utilized inside the interpreter
> 3) different machine code executes
> 4) the temporary objects created have different id's and types
> 5) different execution times (by a trivial amount)
> 6) it takes different keystrokes to edit the two source files once you 
> want to make it do something useful
> 7) the processor works a little harder on one than the other, possibly 
> resulting in a different power consumption
> 8) different byte code is produced
> 
> Or you could be asking about Python version 3, in which case
> 1) the syntax error message points to a different character
> 
> -- 
> 
> DaveA



在 2012年3月26日星期一UTC+8下午8时11分03秒,Dave Angel写道:
> On 03/26/2012 07:45 AM, redstone-cold at 163.com wrote:
> > I know the print statement produces the same result when both of these two instructions are executed ,I just want to know Is there any difference between print 3 and print '3' in Python ?
> 
> This is a non-question.  The input is the same, the output is the same, 
> what else matters?
> 
> On the other hand, if you want to dig deeper, there are lots of differences:
> 
> 1) the former has a shorter source file
> 2) different C code is utilized inside the interpreter
> 3) different machine code executes
> 4) the temporary objects created have different id's and types
> 5) different execution times (by a trivial amount)
> 6) it takes different keystrokes to edit the two source files once you 
> want to make it do something useful
> 7) the processor works a little harder on one than the other, possibly 
> resulting in a different power consumption
> 8) different byte code is produced
> 
> Or you could be asking about Python version 3, in which case
> 1) the syntax error message points to a different character
> 
> -- 
> 
> DaveA

Oh ,God !  I think this is what I really want to know ,thank you very much !



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