Iterating over a specific range in a python string -

im having difficulty figuring out how iterate on string in python. goal iterate point in string, , remove rest of elements after iteration point , work substring.

lets have string, str1:str1 = "8493 2020" , have number specifies how far want iterate, a = 4

how can iterate on str1 - , remove characters after a?

i tried got syntax error of "typeerror: 'str' object not callable":

for in str1(range(a)):      print  

you iterate on slice.

>>> str1 = "8493 2020" >>> = 4 >>> in str1[:a]:         print   8 4 9 3 

if need create new string, do.

>>> b = str1[:a] >>> b '8493'