Python.use(better) #課題：組み込み型 list《test case》

‖記事一覧‖ Python.use(better)《Python3.1》

《余録》課題：組み込み型 list《test case》

《著》森こねこ、小粒ちゃん＋∞《監修》小泉ひよ子とタマゴ倶楽部

第０版♪2001/03/02 ● 第１版♪2003/05/25 ● 第２版♪2004/06/01 ● 第３版♪2009/02/28

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組み込み型と同等の機能を実現する課題を通して「OOP」の理解を深めます。
※ Python1.5 で作成した例題を、Python3.1 で再構成しました。

課題：テストケース

Python 3.1 (r31:73578, Jun 27 2009, 21:49:46) 
[GCC 4.0.1 (Apple Inc. build 5493)] on darwin
Type "copyright", "credits" or "license()" for more information.
>>> ================================ RESTART ================================
>>> 
myList.py #1.0a*0
========================
Mon Dec  7 03:57:41 2009
========================
**********************************************************************
File "__main__", line 6, in __main__
Failed example:
    None
Expected:
    version: #1.0.51
Got nothing
**********************************************************************
1 items had failures:
   1 of   2 in __main__
***Test Failed*** 1 failures.
>>> do_all()
>>> # ======================================== step00
>>> #
>>> s = myList(); s
<__main__.myList object at 0x12e9530>
>>> # ======================================== step01
>>> #
>>> s = myList(); s

>>> # ======================================== step02
>>> #
>>> s = myList(); s

>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ======================================== step03
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ======================================== step04
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ======================================== step05
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ======================================== step06
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ======================================== step07
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ---------------------------------------- count
>>> s = myList("as happy as happy can be"); s
['a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'c', 'a', 'n', ' ', 'b', 'e']
>>> s.count('p')
4
>>> s.count('y')
2
>>> s.count('t')
0
>>> s.count('h')
2
>>> s.count('o')
0
>>> s.count('n')
1
>>> # ======================================== step08
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ---------------------------------------- count
>>> s = myList("as happy as happy can be"); s
['a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'c', 'a', 'n', ' ', 'b', 'e']
>>> s.count('p')
4
>>> s.count('y')
2
>>> s.count('t')
0
>>> s.count('h')
2
>>> s.count('o')
0
>>> s.count('n')
1
>>> # ---------------------------------------- index
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.index('A')
0
>>> s.index('B')
1
>>> s.index('C')
2
>>> s.index('@')
ValueError: myList.index(x): x not in myList
>>> # ======================================== step09
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ---------------------------------------- count
>>> s = myList("as happy as happy can be"); s
['a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'c', 'a', 'n', ' ', 'b', 'e']
>>> s.count('p')
4
>>> s.count('y')
2
>>> s.count('t')
0
>>> s.count('h')
2
>>> s.count('o')
0
>>> s.count('n')
1
>>> # ---------------------------------------- index
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.index('A')
0
>>> s.index('B')
1
>>> s.index('C')
2
>>> s.index('@')
ValueError: myList.index(x): x not in myList
>>> # ---------------------------------------- __getitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0]
'A'
>>> s[1]
'B'
>>> s[2]
'C'
>>> s[3]
IndexError: myList index out of range
>>> # ======================================== step10
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ---------------------------------------- count
>>> s = myList("as happy as happy can be"); s
['a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'c', 'a', 'n', ' ', 'b', 'e']
>>> s.count('p')
4
>>> s.count('y')
2
>>> s.count('t')
0
>>> s.count('h')
2
>>> s.count('o')
0
>>> s.count('n')
1
>>> # ---------------------------------------- index
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.index('A')
0
>>> s.index('B')
1
>>> s.index('C')
2
>>> s.index('@')
ValueError: myList.index(x): x not in myList
>>> # ---------------------------------------- __getitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0]
'A'
>>> s[1]
'B'
>>> s[2]
'C'
>>> s[3]
IndexError: myList index out of range
>>> # ---------------------------------------- __setitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0] = 'X'; s, len(s)
(['X', 'B', 'C'], 3)
>>> s[1] = 'Y'; s, len(s)
(['X', 'Y', 'C'], 3)
>>> s[2] = 'Z'; s, len(s)
(['X', 'Y', 'Z'], 3)
>>> # ======================================== step11
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ---------------------------------------- count
>>> s = myList("as happy as happy can be"); s
['a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'c', 'a', 'n', ' ', 'b', 'e']
>>> s.count('p')
4
>>> s.count('y')
2
>>> s.count('t')
0
>>> s.count('h')
2
>>> s.count('o')
0
>>> s.count('n')
1
>>> # ---------------------------------------- index
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.index('A')
0
>>> s.index('B')
1
>>> s.index('C')
2
>>> s.index('@')
ValueError: myList.index(x): x not in myList
>>> # ---------------------------------------- __getitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0]
'A'
>>> s[1]
'B'
>>> s[2]
'C'
>>> s[3]
IndexError: myList index out of range
>>> # ---------------------------------------- __setitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0] = 'X'; s, len(s)
(['X', 'B', 'C'], 3)
>>> s[1] = 'Y'; s, len(s)
(['X', 'Y', 'C'], 3)
>>> s[2] = 'Z'; s, len(s)
(['X', 'Y', 'Z'], 3)
>>> # ---------------------------------------- insert
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(0,"_"); s, len(s)
(['_', 'A', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(1,"_"); s, len(s)
(['A', '_', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(2,"_"); s, len(s)
(['A', 'B', '_', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(3,"_"); s, len(s)
(['A', 'B', 'C', '_'], 4)
>>> # ======================================== step12
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ---------------------------------------- count
>>> s = myList("as happy as happy can be"); s
['a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'c', 'a', 'n', ' ', 'b', 'e']
>>> s.count('p')
4
>>> s.count('y')
2
>>> s.count('t')
0
>>> s.count('h')
2
>>> s.count('o')
0
>>> s.count('n')
1
>>> # ---------------------------------------- index
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.index('A')
0
>>> s.index('B')
1
>>> s.index('C')
2
>>> s.index('@')
ValueError: myList.index(x): x not in myList
>>> # ---------------------------------------- __getitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0]
'A'
>>> s[1]
'B'
>>> s[2]
'C'
>>> s[3]
IndexError: myList index out of range
>>> # ---------------------------------------- __setitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0] = 'X'; s, len(s)
(['X', 'B', 'C'], 3)
>>> s[1] = 'Y'; s, len(s)
(['X', 'Y', 'C'], 3)
>>> s[2] = 'Z'; s, len(s)
(['X', 'Y', 'Z'], 3)
>>> # ---------------------------------------- insert
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(0,"_"); s, len(s)
(['_', 'A', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(1,"_"); s, len(s)
(['A', '_', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(2,"_"); s, len(s)
(['A', 'B', '_', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(3,"_"); s, len(s)
(['A', 'B', 'C', '_'], 4)
>>> # ---------------------------------------- extend
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.extend(''); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.extend('D'); s, len(s)
(['A', 'B', 'C', 'D'], 4)
>>> s.extend('EF'); s, len(s)
(['A', 'B', 'C', 'D', 'E', 'F'], 6)
>>> # ======================================== step13
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ---------------------------------------- count
>>> s = myList("as happy as happy can be"); s
['a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'c', 'a', 'n', ' ', 'b', 'e']
>>> s.count('p')
4
>>> s.count('y')
2
>>> s.count('t')
0
>>> s.count('h')
2
>>> s.count('o')
0
>>> s.count('n')
1
>>> # ---------------------------------------- index
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.index('A')
0
>>> s.index('B')
1
>>> s.index('C')
2
>>> s.index('@')
ValueError: myList.index(x): x not in myList
>>> # ---------------------------------------- __getitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0]
'A'
>>> s[1]
'B'
>>> s[2]
'C'
>>> s[3]
IndexError: myList index out of range
>>> # ---------------------------------------- __setitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0] = 'X'; s, len(s)
(['X', 'B', 'C'], 3)
>>> s[1] = 'Y'; s, len(s)
(['X', 'Y', 'C'], 3)
>>> s[2] = 'Z'; s, len(s)
(['X', 'Y', 'Z'], 3)
>>> # ---------------------------------------- insert
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(0,"_"); s, len(s)
(['_', 'A', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(1,"_"); s, len(s)
(['A', '_', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(2,"_"); s, len(s)
(['A', 'B', '_', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(3,"_"); s, len(s)
(['A', 'B', 'C', '_'], 4)
>>> # ---------------------------------------- extend
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.extend(''); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.extend('D'); s, len(s)
(['A', 'B', 'C', 'D'], 4)
>>> s.extend('EF'); s, len(s)
(['A', 'B', 'C', 'D', 'E', 'F'], 6)
>>> # ---------------------------------------- __delitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[0]; s, len(s)
(['B', 'C'], 2)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[1]; s, len(s)
(['A', 'C'], 2)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[2]; s, len(s)
(['A', 'B'], 2)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[3]; s, len(s)
IndexError: myList assignment index out of range
>>> # ======================================== step14
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ---------------------------------------- count
>>> s = myList("as happy as happy can be"); s
['a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'c', 'a', 'n', ' ', 'b', 'e']
>>> s.count('p')
4
>>> s.count('y')
2
>>> s.count('t')
0
>>> s.count('h')
2
>>> s.count('o')
0
>>> s.count('n')
1
>>> # ---------------------------------------- index
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.index('A')
0
>>> s.index('B')
1
>>> s.index('C')
2
>>> s.index('@')
ValueError: myList.index(x): x not in myList
>>> # ---------------------------------------- __getitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0]
'A'
>>> s[1]
'B'
>>> s[2]
'C'
>>> s[3]
IndexError: myList index out of range
>>> # ---------------------------------------- __setitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0] = 'X'; s, len(s)
(['X', 'B', 'C'], 3)
>>> s[1] = 'Y'; s, len(s)
(['X', 'Y', 'C'], 3)
>>> s[2] = 'Z'; s, len(s)
(['X', 'Y', 'Z'], 3)
>>> # ---------------------------------------- insert
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(0,"_"); s, len(s)
(['_', 'A', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(1,"_"); s, len(s)
(['A', '_', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(2,"_"); s, len(s)
(['A', 'B', '_', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(3,"_"); s, len(s)
(['A', 'B', 'C', '_'], 4)
>>> # ---------------------------------------- extend
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.extend(''); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.extend('D'); s, len(s)
(['A', 'B', 'C', 'D'], 4)
>>> s.extend('EF'); s, len(s)
(['A', 'B', 'C', 'D', 'E', 'F'], 6)
>>> # ---------------------------------------- __delitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[0]; s, len(s)
(['B', 'C'], 2)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[1]; s, len(s)
(['A', 'C'], 2)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[2]; s, len(s)
(['A', 'B'], 2)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[3]; s, len(s)
IndexError: myList assignment index out of range
>>> # ---------------------------------------- remove
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.remove('A'); s
['B', 'C']
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.remove('B'); s
['A', 'C']
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.remove('C'); s
['A', 'B']
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.remove('@'); s
ValueError: ValueError: myList.remove(x): x not in myList
>>> # ======================================== step15
>>> #
>>> # ---------------------------------------- __init__
>>> s = myList(); s

>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> # ---------------------------------------- append
>>> s = myList(); s

>>> s.append('A'); s
['A']
>>> s.append('B'); s
['A', 'B']
>>> s.append('C'); s
['A', 'B', 'C']
>>> # ---------------------------------------- __len__
>>> s = myList(); s, len(s)
(, 0)
>>> s.append('A'); s, len(s)
(['A'], 1)
>>> s.append('B'); s, len(s)
(['A', 'B'], 2)
>>> s.append('C'); s, len(s)
(['A', 'B', 'C'], 3)
>>> # ---------------------------------------- __contains__
>>> s = myList(); s, len(s)
(, 0)
>>> 'A' in s
False
>>> '@' in s
False
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> 'A' in s
True
>>> '@' in s
False
>>> # ---------------------------------------- count
>>> s = myList("as happy as happy can be"); s
['a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'a', 's', ' ', 'h', 'a', 'p', 'p', 'y', ' ', 'c', 'a', 'n', ' ', 'b', 'e']
>>> s.count('p')
4
>>> s.count('y')
2
>>> s.count('t')
0
>>> s.count('h')
2
>>> s.count('o')
0
>>> s.count('n')
1
>>> # ---------------------------------------- index
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.index('A')
0
>>> s.index('B')
1
>>> s.index('C')
2
>>> s.index('@')
ValueError: myList.index(x): x not in myList
>>> # ---------------------------------------- __getitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0]
'A'
>>> s[1]
'B'
>>> s[2]
'C'
>>> s[3]
IndexError: myList index out of range
>>> # ---------------------------------------- __setitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s[0] = 'X'; s, len(s)
(['X', 'B', 'C'], 3)
>>> s[1] = 'Y'; s, len(s)
(['X', 'Y', 'C'], 3)
>>> s[2] = 'Z'; s, len(s)
(['X', 'Y', 'Z'], 3)
>>> # ---------------------------------------- insert
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(0,"_"); s, len(s)
(['_', 'A', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(1,"_"); s, len(s)
(['A', '_', 'B', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(2,"_"); s, len(s)
(['A', 'B', '_', 'C'], 4)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.insert(3,"_"); s, len(s)
(['A', 'B', 'C', '_'], 4)
>>> # ---------------------------------------- extend
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.extend(''); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.extend('D'); s, len(s)
(['A', 'B', 'C', 'D'], 4)
>>> s.extend('EF'); s, len(s)
(['A', 'B', 'C', 'D', 'E', 'F'], 6)
>>> # ---------------------------------------- __delitem__
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[0]; s, len(s)
(['B', 'C'], 2)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[1]; s, len(s)
(['A', 'C'], 2)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[2]; s, len(s)
(['A', 'B'], 2)
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> del s[3]; s, len(s)
IndexError: myList assignment index out of range
>>> # ---------------------------------------- remove
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.remove('A'); s
['B', 'C']
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.remove('B'); s
['A', 'C']
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.remove('C'); s
['A', 'B']
>>> s = myList("ABC"); s, len(s)
(['A', 'B', 'C'], 3)
>>> s.remove('@'); s
ValueError: ValueError: myList.remove(x): x not in myList
>>> # ---------------------------------------- pop
>>> s = myList("ABC"); s
['A', 'B', 'C']
>>> s.pop(), s
('C', ['A', 'B'])
>>> s.pop(), s
('B', ['A'])
>>> s.pop(), s
('A', )
>>> s.pop(), s
IndexError: IndexError: pop from empty myList
>>> 

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Last updated♪2009/12/07