Python 将列表值转换为字符串
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Python turn list values into String
提问by user1869421
I've got the list values stored as:
我将列表值存储为：
country = [u'USA']
How can I turn it into just 'USA'. I've tried str(country), but it didn't work.
我怎么能把它变成“美国”。我试过了str(country)，但没有奏效。
采纳答案by Ashwini Chaudhary
Apply str()on the element not on the list:
应用于str()不在列表中的元素：
In [206]: country = [u'USA']
In [207]: country[0] = str(country[0])
In [208]: country
Out[208]: ['USA']
or may be you meant this:
或者你可能是这个意思：
In [217]: country = [u'USA']
In [218]: country = str(country[0])
In [219]: country
Out[219]: 'USA'
回答by jfs
countryis a list that already contains Unicode strings. You don't need to convert it. The u''syntax is just the item representation as a Python literal (how you would type it in a Python source code).
country是一个已经包含 Unicode 字符串的列表。你不需要转换它。该u''语法只是项目表示为Python文字（你将如何在Python源代码中键入它）。
If you do need a bytestring; use .encode()method with an appropriate character encoding e.g.:
如果你确实需要一个字节串；使用.encode()具有适当字符编码的方法，例如：
b = country[0].encode("ascii")
In general, structure a text processing code as Unicode sandwichi.e., use Unicode internally and use bytes only to communicate with outside world; don't mix the two.
一般情况下，将文本处理代码构造为Unicode三明治，即内部使用Unicode，仅使用字节与外部世界进行通信；不要将两者混为一谈。
