On Dec 3, 2007, at 9:45 PM, Ed Leafe wrote:
> Here's another example that will usually trip up Python n00bs who
> expect names to work as variables in other languages do:
Here's an even simpler one:
x = 1
y = x
# Affirm that x and y are the same
print y is x # True
x += 1
# Make sure they're still the same
print y is x # False!
print x # 2
print y # 1
x and y were the same object, and then we incremented x. Why didn't
y also get incremented?
-- Ed Leafe
-- http://leafe.com
-- http://dabodev.com
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