python create string with variables code example

Example 1: concardinate str and a variable in python

print("the number is five " + str(5))

Example 2: insert into string python

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

Example 3: how to add a variable to an string

var str = "ello";
var letter = "h";
str = letter + str;