Re: Variables

[Richard Blackwood]

Dan Bishop wrote:
Richard Blackwood wrote:
 

Steven Bethard wrote:
   

Richard Blackwood wrote:
     

Indeed, this language is math. My friend says that foo is a
       

constant
 

and necessarily not a variable. If I had written foo =
       

raw_input(),
 

he would say that foo is a variable.
       

Then what does he say if you write:
foo = 5
foo = 6
     

...
 

He says that foo is a constant. At first it was a constant which
   

equaled
 

5, then it was a constant that equaled 6.
   

He must have a very unusual definition of "constant".
 

I believe he argues that foo existed as two separate constants. He also 
says that if I write:

foo = 6
foo = raw_input()
then foo first exists as a constant and then as a variable (because it 
can then be anything, any value that the user inputs).
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