ValueError: All strings must be XML compatible: Unicode or ASCII, no NULL bytes or control characters

[vikotse]

environment: pdfquery=0.4.3 python=2.7.15

I use pdfquery to load this pdf, and encounter an error.

error information as follows: pdf.load() File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pdfquery/pdfquery.py", line 385, in load self.tree = self.get_tree(*_flatten(page_numbers)) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pdfquery/pdfquery.py", line 487, in get_tree for n, page in pages: File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pdfquery/pdfquery.py", line 608, in return (self.get_layout(page) for page in self._cached_pages()) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pdfquery/pdfquery.py", line 603, in get_layout layout = self._add_annots(layout, page.annots) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pdfquery/pdfquery.py", line 655, in _add_annots elem = parser.makeelement('Annot', annot) File "src/lxml/parser.pxi", line 1004, in lxml.etree._BaseParser.makeelement File "src/lxml/apihelpers.pxi", line 131, in lxml.etree._makeElement File "src/lxml/apihelpers.pxi", line 119, in lxml.etree._makeElement File "src/lxml/apihelpers.pxi", line 300, in lxml.etree._initNodeAttributes File "src/lxml/apihelpers.pxi", line 311, in lxml.etree._addAttributeToNode File "src/lxml/apihelpers.pxi", line 1439, in lxml.etree._utf8 ValueError: All strings must be XML compatible: Unicode or ASCII, no NULL bytes or control characters

[tsuga]

I'm having the same issue. Any update?