diff options
| -rw-r--r-- | youtube_dl/compat.py | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/youtube_dl/compat.py b/youtube_dl/compat.py index 02abf8c1e..49e3c90e2 100644 --- a/youtube_dl/compat.py +++ b/youtube_dl/compat.py @@ -2529,6 +2529,24 @@ else: el.text = el.text.decode('utf-8') return doc +if hasattr(etree, 'register_namespace'): + compat_etree_register_namespace = etree.register_namespace +else: + def compat_etree_register_namespace(prefix, uri): + """Register a namespace prefix. + The registry is global, and any existing mapping for either the + given prefix or the namespace URI will be removed. + *prefix* is the namespace prefix, *uri* is a namespace uri. Tags and + attributes in this namespace will be serialized with prefix if possible. + ValueError is raised if prefix is reserved or is invalid. + """ + if re.match(r"ns\d+$", prefix): + raise ValueError("Prefix format reserved for internal use") + for k, v in list(etree._namespace_map.items()): + if k == uri or v == prefix: + del etree._namespace_map[k] + etree._namespace_map[uri] = prefix + if sys.version_info < (2, 7): # Here comes the crazy part: In 2.6, if the xpath is a unicode, # .//node does not match if a node is a direct child of . ! |