[Baypiggies] Trip-up

[Paul McNett]

I keep reaching the point where I feel like I understand Python and 
could even teach it, but then:

 >>> a = 123456
 >>> b = 123456
 >>> a is b
False
 >>> 123456 is 123456
True

I think this is really just an implementation detail rearing its head:

 >>> id(123456)
135732936
 >>> id(123456)
135732936
 >>> id(a)
135732948
 >>> id(b)
135732960

So Python is reusing the same id for the unbound 123456 value each time. 
Fair enough, but it still startled me at first. I guess my new mantra is 
"never work with unbound objects..."

-- 
Paul McNett
http://paulmcnett.com
http://dabodev.com