On 9/25/2010 4:45 AM, Thomas Jollans wrote:
On Saturday 25 September 2010, it occurred to Yingjie Lan to exclaim:
Hi,
I noticed that in python3k, multiplying a sequence by a negative integer is
the same as multiplying it by 0, and the result is an empty sequence. It
seems to me that there is a more meaningful symantics.
The concept that the multiply operator should be overloaded to
do something l33t on sequences was a Python design mistake. It
leads to semantics like this:
x = 10
y = "10"
x*2
20
y*2
'1010'
int(y*2)
1010
int(y)*2
20
That's awful. It's the kind of thing a novice C++
programmer would write shortly after they discovered operator
overloading.
Now, ask yourself, when you get a numeric value back from
a database, is it an integer or a string? How about the CSV
module? Are you sure?
John Nagle
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