如何仅更改代码的特定部分？

Question

I do not have a code but may I know how to do something like that:

I want to print " is happy." The outputs should be John is happy. Mary is happy. Tom is happy.

only the part changes here so how can I do so with this {} included?

Answer 1

Is this what you are looking for? Have some kind of list of oyur names. Then you can print using a for loop

names = ["john", "mary"]
for name in names:
    print("{} is happy".format(name))