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6e2338184e
- Delete from Releases when deleting artist/album - Searcher - Size limits not quite working - Searcher - 1st newznab used even if disabled - Rutracker search stopped working for me, fixed by updating Beautiful Soup. Moved bs4 and html5lib to lib and ensured (I think) it’s imported from the right place
58 lines
2.3 KiB
Python
58 lines
2.3 KiB
Python
"""A collection of modules for iterating through different kinds of
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tree, generating tokens identical to those produced by the tokenizer
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module.
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To create a tree walker for a new type of tree, you need to do
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implement a tree walker object (called TreeWalker by convention) that
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implements a 'serialize' method taking a tree as sole argument and
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returning an iterator generating tokens.
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"""
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from __future__ import absolute_import, division, unicode_literals
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import sys
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from ..utils import default_etree
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treeWalkerCache = {}
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def getTreeWalker(treeType, implementation=None, **kwargs):
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"""Get a TreeWalker class for various types of tree with built-in support
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treeType - the name of the tree type required (case-insensitive). Supported
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values are:
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"dom" - The xml.dom.minidom DOM implementation
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"pulldom" - The xml.dom.pulldom event stream
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"etree" - A generic walker for tree implementations exposing an
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elementtree-like interface (known to work with
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ElementTree, cElementTree and lxml.etree).
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"lxml" - Optimized walker for lxml.etree
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"genshi" - a Genshi stream
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implementation - (Currently applies to the "etree" tree type only). A module
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implementing the tree type e.g. xml.etree.ElementTree or
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cElementTree."""
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treeType = treeType.lower()
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if treeType not in treeWalkerCache:
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if treeType in ("dom", "pulldom"):
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name = "%s.%s" % (__name__, treeType)
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__import__(name)
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mod = sys.modules[name]
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treeWalkerCache[treeType] = mod.TreeWalker
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elif treeType == "genshi":
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from . import genshistream
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treeWalkerCache[treeType] = genshistream.TreeWalker
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elif treeType == "lxml":
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from . import lxmletree
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treeWalkerCache[treeType] = lxmletree.TreeWalker
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elif treeType == "etree":
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from . import etree
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if implementation is None:
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implementation = default_etree
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# XXX: NEVER cache here, caching is done in the etree submodule
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return etree.getETreeModule(implementation, **kwargs).TreeWalker
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return treeWalkerCache.get(treeType)
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