Python, print delimited list

Question

Consider this Python code for printing a list of comma separated values

for element in list:
    print element + \",\",

What is the preferr

Answer 1

>>> a=[1,2,3]
>>> a=[str(i) for i in a ]
>>> s=a[0]
>>> for i in a[1:-1]: s="%s,%s"%(s,i)
...
>>> s=s+","+a[-1]
>>> s
'1,2,3'