parameters: (l, comma = ", ")
return_statement: return s
docstring: Transform list of strings into a comma separated values string suitable
      for appending to an existing comma separated value string.
docstring_summary: Transform list of strings into a comma separated values string suitable
      for appending to an existing comma separated value string.
docstring_tokens: Transform list of strings into a comma separated values string suitable for appending to an existing comma separated value string .
function: def joining_csv(l, comma = ", "):
      """
      Transform list of strings into a comma separated values string suitable
      for appending to an existing comma separated value string.
      """
      s = ''
      n = len(l)
      for i in range(0,n):
          s += "%s%s" % (comma, l[i])
      return s;
function_tokens: def joining_csv ( l , comma = ", " ) : s = '' n = len ( l ) for i in range ( 0 , n ) : s += "%s%s" % ( comma , l [ i ] ) return s