Python how to remove last comma from print(string, end=“, ”)

Question

my output from a forloop is

string = \"\"
for x in something:
   #some operation
   string =  x += string 

print(string)

5
66
777

I use

Answer 1

If you can first construct a list of strings, you can then use sequence unpacking within print and use sep instead of end:

strings = ['5', '66', '777']

print(*strings, sep=', ')

5, 66, 777