On 2015-06-02 01:55, fl wrote:
On Sunday, May 31, 2015 at 9:46:56 PM UTC-7, fl wrote:
Hi,
When I search solution of reverse a string/number, I came across a short
function online:
>>> def palindrome(num):
return str(num) == str(num)[::-1]
I thought that it is a general function. And with the following variable:
>>> a
'1234_5555'
>>> parlindrome(a)
Traceback (most recent call last):
File "<pyshell#126>", line 1, in <module>
parlindrome(a)
NameError: name 'parlindrome' is not defined
Then, I find that parlindrome is a special checking mirrored word.
I use Python 2.7.9. Why does the error message show
name 'parlindrome' is not defined
Thanks,
Thanks, I realize that it was spelled wrong. Now, with the correct spelling
the result is a 'False'. I have expected it gives reversed string. Is the
function behaves correct or not?
It compares 'num' as a string to the reverse of that to test whether
it's a palindrome,
so, yes, it's behaving correctly.
Perhaps its purpose would have been clearer if it had been called
"is_palindrome".
a='1234'
def palindrome(num):
return str(num) == str(num)[::-1]
palindrome(a)
False
palindrome("fread")
False
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