>>> repr(111.5)

'111.5'

>>> repr(10)

''

>>> int("")

11

>>> long("")

22L

>>> float("1.22")

1.22

>>> hex(19)

'0x13'

>>> oct(20)

''

>>> tuple("1,2,3,4,5")

('', ',', '', ',', '', ',', '', ',', '')

>>> tuple("")

('', '', '', '', '')

>>> tuple([1,2,3,4,5])

(1, 2, 3, 4, 5)

>>> tuple({1:2,3:4})

(1, 3)

>>> list((1,2,3,4,5))

[1, 2, 3, 4, 5]

>>> list("")

['', '', '', '', '']

>>> list({1:2,3:4})

[1, 3]

>>>

>>> chr(65)

'A'

>>> ord("A")

65

#list to str

>>> "".join(["a",""])

'a1'