The lxml XML toolkit is a Pythonic binding for the C libraries libxml2 and libxslt.
It is unique in that it combines the speed and XML feature completeness of these libraries with the simplicity of a native Python API, mostly compatible but superior to the well-known Element Tree API.
Es kann mehrere Unterelemente geben, aber nur genau ein Root-Element.
Die Elemente knnen Attribute und/oder Inhalte enthalten.
XML is an application profile or restricted form of SGML, the Standard Generalized Markup Language.
By construction, XML documents are conforming SGML documents." "XML is primarily intended to meet the requirements of large-scale Web content providers for industry-specific markup, vendor-neutral data exchange, media-independent publishing, one-on-one marketing, workflow management in collaborative authoring environments, and the processing of Web documents by intelligent clients.
Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at
JSON Web Token (JWT) is a compact claims representation format intended for space constrained environments such as HTTP Authorization headers and URI query parameters.
The latest release works with all CPython versions from 2.6 to 3.6.
See the introduction for more information about background and goals of the lxml project. lxml has been downloaded from the Python Package Index more than two million times and is also available directly in many package distributions, e.g. Most people who use lxml do so because they like using it.
The next version of 'HTML' is expected to be reformulated as an XML application, so that it will be based upon XML rather than upon SGML.
As of December 1998, 'Voyager' was the W3C code name for HTML reformulated as an application of XML.