Commafy 함수 만들기

# Make a function commafy that, given a list of three or more things,

# returns a list with commas.

#

# >>>> commafy(["trinket", "learning", "fun"])

# trinket, learning, and fun

# >>>> commafy(["lions", "tigers", "bears"])

# lions, tigers, and bears

def commafy(list):

# Add code here that returns the answer

objectCount = len(list)

tempList = ""

for i in range(objectCount - 1):

tempList += list[i] + ", "

tempList += "and " + list[i]

list = tempList

return list

# Add print statements here to test what your code does:

print (commafy(["trinket", "learning", "fun"]))

print (commafy(["lions", "tigers", "bears"]))

Python 3.6.1 (default, Dec 2015, 13:05:11)
[GCC 4.8.2] on linux
   
trinket, learning, and learning
lions, tigers, and tigers

Reference site : https://hourofpython.trinket.io/python-challenges#/string-challenges/oxford-comma-challenge