Python 如何使用lxml对多个xsd模式进行验证?
我正在编写一个单元测试,通过获取其xsd模式并使用python的lxml库进行验证来验证我生成的站点地图xml: 下面是有关我的根元素的一些元数据:Python 如何使用lxml对多个xsd模式进行验证?,python,xml,xsd,lxml,Python,Xml,Xsd,Lxml,我正在编写一个单元测试,通过获取其xsd模式并使用python的lxml库进行验证来验证我生成的站点地图xml: 下面是有关我的根元素的一些元数据: xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd
http://www.google.com/schemas/sitemap-image/1.1
http://www.google.com/schemas/sitemap-image/1.1/sitemap-image.xsd"
这个测试代码是:
_xsd_validators = {}
def get_xsd_validator(url):
if url not in _xsd_validators:
_xsd_validators[url] = etree.XMLSchema(etree.parse(StringIO(requests.get(url).content)))
return _xsd_validators[url]
# this util function is later on in a TestCase
def validate_xml(self, content):
content.seek(0)
doc = etree.parse(content)
schema_loc = doc.getroot().attrib.get('{http://www.w3.org/2001/XMLSchema-instance}schemaLocation').split(' ')
# lxml doesn't like multiple namespaces
for i, loc in enumerate(schema_loc):
if i % 2 == 1:
get_xsd_validator(schema_loc[i]).assertValid(doc)
return doc
验证失败的XML示例:
<?xml version="1.0" encoding="UTF-8"?>
<urlset
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.sitemaps.org/schemas/sitemap/0.9
http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd
http://www.google.com/schemas/sitemap-image/1.1
http://www.google.com/schemas/sitemap-image/1.1/sitemap-image.xsd"
>
<url>
<loc>https://www.example.com/press</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
<url>
<loc>https://www.example.com/about-faq</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
</urlset>
或:
您可以尝试定义一个wrapper schema wrapper-schema.xsd来导入所需的所有模式,并将此模式与lxml一起使用,而不是与其他模式一起使用
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:import
namespace="http://www.sitemaps.org/schemas/sitemap/0.9"
schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"/>
<xs:import
namespace="http://www.google.com/schemas/sitemap-image/1.1"
schemaLocation="http://www.google.com/schemas/sitemap-image/1.1/sitemap-image.xsd"/>
</xs:schema>
我没有python,但这在氧气中成功验证:
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="wrapper-schema.xsd"
>
<image:image>
<image:loc>http://www.example.com/image</image:loc>
</image:image>
<url>
<loc>https://www.example.com/press</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
<url>
<loc>https://www.example.com/about-faq</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
</urlset>
http://www.example.com/image
https://www.example.com/press
2016-08-11
每周的
https://www.example.com/about-faq
2016-08-11
每周的
谢谢,我来试试。看起来不错!以下是此解决方案的帮助步骤:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:import
namespace="http://www.sitemaps.org/schemas/sitemap/0.9"
schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"/>
<xs:import
namespace="http://www.google.com/schemas/sitemap-image/1.1"
schemaLocation="http://www.google.com/schemas/sitemap-image/1.1/sitemap-image.xsd"/>
</xs:schema>
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="wrapper-schema.xsd"
>
<image:image>
<image:loc>http://www.example.com/image</image:loc>
</image:image>
<url>
<loc>https://www.example.com/press</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
<url>
<loc>https://www.example.com/about-faq</loc>
<lastmod>2016-08-11</lastmod>
<changefreq>weekly</changefreq>
</url>
</urlset>