[Tutor] about copy.copy

[Luke Paireepinart]

linda.s wrote:
> what is the difference between b and c in the following code?
#---copyexample.py
import copy
a=[1,4,5]
b=a
c=copy.copy(a)

del(a[0])
print a
print b
print c

#---eof

output:
[4, 5]
[4, 5]
[1, 4, 5]


I.E. 'b' is just a reference to 'a', so modifying 'a' by deleting an 
element changed the value of 'b' (since they are really both just 
references to the
same data structure in memory.)