can't pickle _ElementUnicodeResult objects

[msz1621]

I get the following error when I do:

import dblp
authors = dblp.search('michael ley')
m = authors[0]
print m.name
Michael Ley
print m.publications[0].title
DBLP - Some Lessons Learned.
print m.publications[1].title
Traceback (most recent call last):
File "<pyshell#16>", line 1, in
print m.publications[1].title
File "C:\Python27\lib\idlelib\PyShell.py", line 1325, in write
return self.shell.write(s, self.tags)
File "C:\Python27\lib\idlelib\rpc.py", line 595, in call
value = self.sockio.remotecall(self.oid, self.name, args, kwargs)
File "C:\Python27\lib\idlelib\rpc.py", line 210, in remotecall
seq = self.asynccall(oid, methodname, args, kwargs)
File "C:\Python27\lib\idlelib\rpc.py", line 225, in asynccall
self.putmessage((seq, request))
File "C:\Python27\lib\idlelib\rpc.py", line 324, in putmessage
s = pickle.dumps(message)
File "C:\Python27\lib\copy_reg.py", line 70, in _reduce_ex
raise TypeError, "can't pickle %s objects" % base.name
TypeError: can't pickle _ElementUnicodeResult objects