Python：.encode（'ascii'，'ignore'）做什么？

Question

我是Python的新手，并且正在从工作中解读一些代码。

我注意到有很多行包含row[0].encode('ascii', 'ignore')。

我做了一些阅读，它似乎是从unicode转换为字节。

它只是一种方法来将字符串从u'string'转换为字符串？

Answer 1

 
    encode(...) 
     S.encode([encoding[,errors]]) -> object 

     Encodes S using the codec registered for encoding. encoding defaults 
     to the default encoding. errors may be given to set a different error 
     handling scheme. Default is 'strict' meaning that encoding errors raise 
     a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and 
     'xmlcharrefreplace' as well as any other name registered with 
     codecs.register_error that is able to handle UnicodeEncodeErrors. 

所以它编码一个unicode字符串ASCII和忽略错误

>>> "hello\xffworld".encode("ascii") 
Traceback (most recent call last): 
    File "<stdin>", line 1, in <module> 
UnicodeEncodeError: 'ascii' codec can't encode character '\xff' in position 5: ordinal not in range(128) 

VS

>>> "hello\xffworld".encode("ascii", "ignore") 
b'helloworld'