Am 11.12.2015 um 17:10 schrieb ICT Ezy:
Dear All,
Very Sorry for the my mistake here. I code here with mu question ...
My Question:
A,B=C,D=10,11
print(A,B,C,D)
#(10,11,10,11) --> This is OK!
a=1; b=2
a,b=b,a
print(a,b)
# (1,2) --> This is OK!
x,y=y,x=2,3
print(x,y)
# (3,2) --> Question: How to explain it?
# Not understand this process. Pl explain ...
What else would you expect?
Assigning goes from right to left:
x,y=y,x=2,3
<=>
y, x = 2, 3
x, y = y, x
Otherwise the assignment x, y = y, x would not make any sense, since x
and y haven't any values yet.
And the execution from right to left is also a good choice, because one
would like to do something like:
x = y = z = 0
Again, assigning from left to right woud lead to errors.
--
Robin Koch
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