Palindrome

Question

Need help to understand something.
When i write a code that identifies if the word is pelidrome or not.

word = input("please chose a word:")

rvrs_word = reversed(word)

print(rvrs_word)

This does not print the actuall reversed word.
As sid in the tutorial strings are also lists....
Sooooo why cant i basically reverse and print it ,if its a list? Why do i have to put a list command....

Answer 1

Okay, I told you nonsense above there, sorry!

reversed(word) returns an iterator, not a list, so you indeed have to turn it into the list if you want a list. Or, as I wrote, turn it into a string with join.

What do you need all these lists for anyway? Can you describe a bit, what your program is supposed to do?

Answer 2

Strings are different from lists: They can't be changed, their shape is fixed.

So what reversed does is this: It copies every letter from your string and puts the letters in reversed order into a list.

What you have to do: Connect these letters to a new string. Luckily that's not too hard:

''.join(reversed(word))

Even easier would be to just put a reversed copy of your string into the variable directly.

rvrs_word = word[::-1]

Answer 3

reversed(word) leads to a list, so list(reversed(word)) is useless because it turns a list again into a list. You want a string instead, so you use the string's method 'join'.

Demonstration:

'-'.join('123') - - > '1-2-3'
'>'.join(['a', 'b', 'c']) - - > 'a>b>c'
''. join(['h', 'i']) - - > 'hi'

Answer 4

In your code I see no attempt yet to apply any of the patterns I just taught you.

Come on, try - you can do it!

Answer 5

.join
or
rvrs_word = list(reversed(word))
Is basically the same?
And how exactly do i use the .join.
Thank you very much! Btw

Answer 6

https://code.sololearn.com/c6gDWMMl0OUW/?ref=app

Id be glad if you could help

Answer 7

I cant seem to understand. When run my code, the end result wont print the string aka list of letters in reverse. It just says [<reversedobject ect.......
Thats the only thing thats holding me back. Other than that, everything is understood.
Only when i put list command before the reverse(word)
It does print it as list contaning letters in reverse.
but!
Puts it as list inside a list.

Answer 8

I hope i made myself clear.....

Answer 9

I basically want to write a program that tells the user if the word he wrote is a plindrome.
If its a plindrome it should print correct.
This is why i need to compare a string to a reverse string.
If not poli it should print wrong and the reversed string .

Answer 10

Okay, you only want to compare two strings basically. Why do you even want to store the reversed string in a list?