Кортеж

1.9.1.py

# -*- encoding: utf-8 -*-
"""
Определение
"""

t = ()
print t
t = 12345, 54321, 'hello!'
print t[0]
print t

singleton = 'hello',    # <-- note trailing comma
print len(singleton)
print singleton

1.9.2.py

# -*- encoding: utf-8 -*-
"""
Присваивание
"""

nudge = 1
wink  = 2
A, B = nudge, wink             # tuple assignment
print A, B                           # like A=nudge; B=wink

nudge = 1
wink  = 2
nudge, wink = wink, nudge      # tuples: swaps values
print nudge, wink                    # like T=nudge; nudge=wink; wink=T

1.9.3.py

# -*- encoding: utf-8 -*-
"""
Кортежи являются неизменяемыми
"""

T = (1, 2, 3)
T[2] = 4             # error!
T = T[:2] + (4,)     # okay: (1, 2, 4)
print T

1.9.4.py

# -*- encoding: utf-8 -*-
"""
Преобразование кортежа в список
"""

T = ('cc', 'aa', 'dd', 'bb')

tmp = list(T)

tmp.sort()

print tmp

1.9.5.py

# -*- encoding: utf-8 -*-
"""
Проверка наличия элемента
"""

inventory = ("a",
             "b",
             "c",
             "d")

if "c" in inventory:
    print "You will live to fight another day." 

1.9.6.py

# -*- encoding: utf-8 -*-
"""
Объединение кортежей
"""

inventory = ("a", "b", "c", "d")
chest = ("gold", "gems")
print chest
inventory += chest
print inventory