How to check if characters in a string are alphabetically ordered

Question

I have been trying these code but there is something wrong. I simply want to know if the first string is alphabetical.

def alp(s1):
    s2=sorted(s1)
    if s2 i         


        

Answer 1

Make sure that you are comparing strings with strings:

In [8]: s = 'abcdef'

In [9]: s == ''.join(sorted(s))
Out[9]: True

In [10]: s2 = 'zxyw'

In [11]: s2 == ''.join(sorted(s2))
Out[11]: False

If s1 or s2 is a string, sorted will return a list, and you will then be comparing a string to a list. In order to do the comparison you want, using ''.join() will take the list and join all the elements together, essentially creating a string representing the sorted elements.