How I can fix this error IndexError: string index out of range

I got IndexError: string index out of range error.

def get_int_arr(str):
    int_arr = []
    num_str = ""
    for i in range(len(str)):
        if str[i].isnumeric():
            num_str += str[i]
            if not str[i+1].isnumeric():
                int_arr.append(num_str)
                num_str = ""
    return int_arr
print(get_int_arr("data 48 call 9 read13 blank0"))

>Solution :

You should just append if the last character is numeric and not check the next one.

def get_int_arr(str):
    int_arr = []
    num_str = ""
    for i in range(len(str)):
        if str[i].isnumeric():
            num_str += str[i]
            if i + 1 == len(str) or not str[i + 1].isnumeric():
                int_arr.append(num_str)
                num_str = ""
    return int_arr

Also, the snippet you posted above is not complete (it misses the first line of your function definition I guess) and using reserved keywords like str to name your variables/arguments is not a good practice.