Python类型转换 [英] Python Type Conversion

问题描述

什么是在python中将int，long，double转换为字符串的最佳方法，反之亦然。

Whats the best way to convert int's, long's, double's to strings and vice versa in python.

我循环遍历列表并将long传递给dict应该变成一个unicode字符串。

I am looping through a list and passing longs to a dict that should be turned into a unicode string.

我做

for n in l:  
    {'my_key':n[0],'my_other_key':n[1]}

为什么一些最明显的事情如此复杂？

Why are some of the most obvious things so complicated?

推荐答案

你可以在Python中这样做2.x：

You could do it like this in Python 2.x:

>>> l = ((1,2),(3,4))
>>> dict(map(lambda n: (n[0], unicode(n[1])), l))
{1: u'2', 3: u'4'}

或在Python 3.x中：

or in Python 3.x:

>>> l = ((1,2),(3,4))
>>> {n[0] : str(n[1]) for n in l}
{1: '2', 3: '4'}

请注意，Python 3中的字符串与Python 2中的unicode字符串相同。

Note that strings in Python 3 are the same as unicode strings in Python 2.

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