When you make a string in Python, but the string shall look like multiple lines in the source code, the following doesn’t work:

id = "line1 "
     "and line2"

But we can do this trick to make it work:

id = (
     "line1 "
     "and line2 "
     "and more"

As long as Python knows something is still on-going (e.g. the parentheses), it concatenates the strings for you.