Dave Abrahams <[email protected]> added the comment:
@effbot, I think you may have misread the OP's example. The first two
arguments /are/ being passed positionally. In any case, there's a real bug
here. cElementTree seems to choke on uses of attrib. Change cElementTree to
ElementTree below and this one works, too.
>>> from xml.etree.cElementTree import Element, tostring
>>> print tostring(Element('foo', attrib={}))
Traceback (most recent call last):
File "bug.py", line 2, in <module>
print tostring(Element('foo', attrib={}))
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/xml/etree/ElementTree.py",
line 1127, in tostring
ElementTree(element).write(file, encoding, method=method)
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/xml/etree/ElementTree.py",
line 821, in write
serialize(write, self._root, encoding, qnames, namespaces)
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/xml/etree/ElementTree.py",
line 933, in _serialize_xml
v = _escape_attrib(v, encoding)
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/xml/etree/ElementTree.py",
line 1093, in _escape_attrib
_raise_serialization_error(text)
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/xml/etree/ElementTree.py",
line 1053, in _raise_serialization_error
"cannot serialize %r (type %s)" % (text, type(text).__name__)
TypeError: cannot serialize {} (type dict)
----------
nosy: +dabrahams
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<http://bugs.python.org/issue1572710>
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