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 preferred method for printing such that a comma does not appear if

element

is the final element in the list.

ex

a = [1, 2, 3]

for element in a

  print str(element) +",",



output

1,2,3,

desired

1,2,3

Answer 1

>>> ','.join(map(str,a))
'1,2,3'

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