How to add a line break?

Question

Python

There is a line with text, how to implement word wrapping to a new line with n characters, but the wrapping should not divide the word, i.e. wrap only on "spaces"
It should be something like this:

my_str = "Lorem Ipsum Lorem Ipsum"
perenos = 15
.
.
.
print(result)
Ожидаемый результат:
Lorem Ipsum\nLorem Ipsum

Answer 1

An inexperienced coder says that you can do this:

my_str = "Lorem Ipsum Lorem Ipsum"
perenos = 15
perenos1 = []
for i in my_str:
    perenos1.append(i)
perenos1.insert(perenos,'\n')
my_str = ''.join(perenos1)
print(my_str)