python xml & encode
时间：2009-08-26 来源：uranusllj
bbb.xml内容
<?xml version="1.0" encoding="GB2312"?>
<catalog>
<book isbn="1-56592-724-9">
<title>The Cathedral & the Bazaar</title>
<author>Eric S. Raymond</author>
</book>
<book isbn="1-56592-051-1">
<title>Making TeX Work</title>
<author>Norman Walsh</author>
</book>
<!-- imagine more entries here... -->
</catalog>
脚本a.py #!/usr/bin/python import xml.sax import pprint from xml.sax import make_parser, parseString
class BookHandler(xml.sax.handler.ContentHandler):
def __init__(self): self.inTitle = 0 self.mapping = {}
def startElement(self, name, attributes):
if name == "book": self.buffer = "" self.isbn = attributes["isbn"] elif name == "title": self.inTitle = 1
def characters(self, data): if self.inTitle: self.buffer += data
def endElement(self, name): if name == "title": self.inTitle = 0 self.mapping[self.isbn] = self.buffer
parser = xml.sax.make_parser() handler = BookHandler() parser.setContentHandler(handler) document = file("bbb.xml") text = document.read().replace("GB2312",'utf-8',1) utfdoc = text.decode("gb2312").encode("utf-8") xml.sax.parseString(text,handler) pprint.pprint(handler.mapping) 注：python 的xml.sax对中文的支持不好，所以这里先把xml里的gb2312先替换成utf-8，并把文件的编码也改成utf-8，然后再处理。注意处理完后再把他还原成gb2312，要不可能会显示异常。 另外，有些情况直接用parser.parse(document)也可以，parser.parse()后面带的参数为文件名，或文件句柄，parser.parse后可带handler参数，该参数必须是SAX ContentHandler 实例。
类似于parse(),带的参数为字符串，需要通过xml.sax.parseString()来调用。
脚本a.py #!/usr/bin/python import xml.sax import pprint from xml.sax import make_parser, parseString
class BookHandler(xml.sax.handler.ContentHandler):
def __init__(self): self.inTitle = 0 self.mapping = {}
def startElement(self, name, attributes):
if name == "book": self.buffer = "" self.isbn = attributes["isbn"] elif name == "title": self.inTitle = 1
def characters(self, data): if self.inTitle: self.buffer += data
def endElement(self, name): if name == "title": self.inTitle = 0 self.mapping[self.isbn] = self.buffer
parser = xml.sax.make_parser() handler = BookHandler() parser.setContentHandler(handler) document = file("bbb.xml") text = document.read().replace("GB2312",'utf-8',1) utfdoc = text.decode("gb2312").encode("utf-8") xml.sax.parseString(text,handler) pprint.pprint(handler.mapping) 注：python 的xml.sax对中文的支持不好，所以这里先把xml里的gb2312先替换成utf-8，并把文件的编码也改成utf-8，然后再处理。注意处理完后再把他还原成gb2312，要不可能会显示异常。 另外，有些情况直接用parser.parse(document)也可以，parser.parse()后面带的参数为文件名，或文件句柄，parser.parse后可带handler参数，该参数必须是SAX ContentHandler 实例。
| parseString( | string, handler[, error_handler]) |
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