python dict tuple moduleちがいまとめ

Python 2.7.6 (default, Sep 9 2014, 15:04:36)

[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on darwin

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>>> a = 1

>>> a

>>> a = "abc"

>>> a

'abc'

>>> a = [1,2,"abc"]

>>> a

[1, 2, 'abc']

>>> a[2]

'abc'

>>> a[1:2]

[2]

>>> a[0:3]

[1, 2, 'abc']

>>> a[-1]

'abc'

>>> a[:-1]

[1, 2]

>>> a = (1,2,3) #'tuple' 中身を変えられない

>>> b=[1,2,3] #これは中身を変えられる

>>> b[1]=4

>>> b

[1, 4, 3]

>>> a[1]=4

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

TypeError: 'tuple' object does not support item assignment

>>> a = {"aaa":1, "bbb":2,"ccc":3}

>>> a["aaa"]

>>> config = {

... 'database': 'testtwitter',

... 'user': 'root',

... 'password': 'password',

... 'host': 'localhost'

... }

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

AttributeError: 'dict' object has no attribute 'database'

'testtwitter'

>>>とすると呼べる。