For the following code, why is the answer not 'yoif!' with the exclamation mark?
>>> s = 'Python is fun!'
>>> s[1:12:3]
>'yoif'
Why is the exclamation mark excluded, since it also has an index number, as shown by the following code (continued from above)?
>>> s[13]
>'!'
s = 'Python is fun!'
s[1:12] only returns string till 'ython is fu' hence a stride of 3 can't reach !
Where as
s[1:14] returns string till 'ython is fun!'.
s[1:14:3]
output: 'yoif!'
As linked in the comment on the question by @Chris_Rands:
a[start:end] # items start through end-1
a[start:] # items start through the rest of the array
a[:end] # items from the beginning through end-1
a[:] # a copy of the whole array
a[start:end:step] # start through not past end, by step