diff options
Diffstat (limited to 'bs4/builder/_lxml.py')
| -rw-r--r-- | bs4/builder/_lxml.py | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/bs4/builder/_lxml.py b/bs4/builder/_lxml.py index 3a1700c..b7e172c 100644 --- a/bs4/builder/_lxml.py +++ b/bs4/builder/_lxml.py @@ -71,12 +71,12 @@ class LXMLTreeBuilderForXML(TreeBuilder): This might be useful later on when creating CSS selectors. """ for key, value in mapping.items(): - if key not in self.soup._namespaces: - # Let the BeautifulSoup object know about a new namespace. - # If there are multiple namespaces defined with the same - # prefix, the first one in the document takes precedence. - self.soup._namespaces[key] = value - + if key and key not in self.soup._namespaces: + # Let the BeautifulSoup object know about a new namespace. + # If there are multiple namespaces defined with the same + # prefix, the first one in the document takes precedence. + self.soup._namespaces[key] = value + def default_parser(self, encoding): # This can either return a parser object or a class, which # will be instantiated with default arguments. |