How to use a reverse function in python3?

Question

I want to reverse a string without slicing it but only using reverse function. So how can I use reverse function to reverse a string?

Purnima Singh · Answer

string1="hithere"

#using list
l1=list(string1)
l1.reverse()
rev="".join(l1)
print rev

#using reversed
rev=''
rev=''.join(reversed(string1))
print rev

#using index
rev=string1[::-1]
print rev

Meenal Deshpande · Answer

With the improved support for Unicode in Python3, more and more folks will be working with languages (Arabic, Hebrew, etc.) that read right-to-left rather than left-to-right. So more and more folks will have a need to reverse a string.
Unfortunately, Python doesn’t have a built-in function, nor do string objects have a built-in method, to do what they will want. The obvious techniques don’t work. This:
try: print(1) s = "a b c" s = reverse(s) print(s) except Exception as e: print(e) try: print(2) s = "a b c" s = reversed(s) print(s) except Exception as e: print(e) try: print(3) s = "a b c" s.reverse() print(s) except Exception as e: print(e) try: print(4) s = "a b c" s.reversed() print(s) except Exception as e: print(e)
produces this output
1 name 'reverse' is not defined 2 <reversed object at 0x00BAB5F0> 3 'str' object has no attribute 'reverse' 4 'str' object has no attribute 'reversed'
Fortunately, the solution is not too difficult. A little one-line function will do the trick.
I call the function “rev” rather than “reverse” on the chance that Python will eventually acquire its own builtin function named “reverse”.
def rev(s): return s[::-1]

Robert Kamei · Answer

You cannot use reverse() or reversed() function to reverse the string directly ,but can can reverse the string using reversed() and join() ,here is an example.

>>> st='Text!' #text to be reversed
>>> s=''
>>> s.join( reversed(st) )
'!txeT'

The 'text!' is reversed.

Sweta Mishra · Answer

# for stringseqString = 'Python'print(list(reversed(seqString)))# for tupleseqTuple = ('P', 'y', 't', 'h', 'o', 'n')print(list(reversed(seqTuple)))# for rangeseqRange = range(5, 9)print(list(reversed(seqRange)))# for listseqList = [1, 2, 4, 3, 5]print(list(reversed(seqList)))