在xmltodict中捕获ExpatError

Question

我使用xmltodict来解析xml。

如果我们解析无效的xml，它会抛出ExpatError。

我怎么抓住这个？这是我在ipython shell中尝试过的内容

>>> import xmltodict
>>> xml_data = """<?xml version="1.0" encoding="UTF-8" ?>
...     <Website>"""

>>> xml_dict = xmltodict.parse(xml_data)
ExpatError: no element found

>>> try:                      
...     xml_dict = xmltodict.parse(xml_data)
... except ExpatError:
...     print "that's right"
NameError: name 'ExpatError' is not defined

>>> try:                      
...     xml_dict = xmltodict.parse(xml_data)
... except xmltodict.ExpatError:
...     print "that's right"
AttributeError: 'module' object has no attribute 'ExpatError'

Answer 1

您需要从ExpatError导入xml.parsers.expact。

from xml.parsers.expat import ExpatError

Answer 2

在xmltodict模块本身内找到它，因此无需从xml模块中单独导入

>>> try:                                             
...     xml_dict = xmltodict.parse(xml_data)
... except xmltodict.expat.ExpatError:
...     print "that's right"
... 
that's right