insert variable to string python code example

Example 1: how to insert a variable into a string without breaking up the string in python

name = "Dan"
age = 21
#you need to have that "f" before the string
name_and_age = f"My name is {name}, and I am {age} years old."
print(name_and_age)

Example 2: insert into string python

def insert (source_str, insert_str, pos):
    return source_str[:pos]+insert_str+source_str[pos:]