* LP1551797: revert previous fix for XSLT error logging as it breaks multi-threaded XSLT processing.
* LP1673355, GH233: ``fromstring()`` html5parser failed to parse byte strings.
3.7.3
Not secure
==================
Bugs fixed ----------
* GH218 was ineffective in Python 3.
* GH222: ``lxml.html.submit_form()`` failed in Python 3. Patch by Jakub Wilk.
3.7.2
Not secure
==================
* GH220: ``xmlfile`` allows switching output methods at an element level. Patch by Burak Arslan.
Bugs fixed ----------
* Work around installation problems in recent Python 2.7 versions due to FTP download failures.
* GH219: ``xmlfile.element()`` was not properly quoting attribute values. Patch by Burak Arslan.
* GH218: ``xmlfile.element()`` was not properly escaping text content of script/style tags. Patch by Burak Arslan.
3.7.1
Not secure
==================
* No source changes, issued only to solve problems with the binary packages released for 3.7.0.
3.7.0
Not secure
==================
Features added --------------
* GH217: ``XMLSyntaxError`` now behaves more like its ``SyntaxError`` baseclass. Patch by Philipp A.
* GH216: ``HTMLParser()`` now supports the same ``collect_ids`` parameter as ``XMLParser()``. Patch by Burak Arslan.
* GH210: Allow specifying a serialisation method in ``xmlfile.write()``. Patch by Burak Arslan.
* GH203: New option ``default_doctype`` in ``HTMLParser`` that allows disabling the automatic doctype creation. Patch by Shadab Zafar.
* GH201: Calling the method ``.set('attrname')`` without value argument (or ``None``) on HTML elements creates an attribute without value that serialises like ``<div attrname></div>``. Patch by Daniel Holth.
* GH197: Ignore form input fields in ``form_values()`` when they are marked as ``disabled`` in HTML. Patch by Kristian Klemon.
Bugs fixed ----------
* GH206: File name and line number were missing from XSLT error messages. Patch by Marcus Brinkmann.
Other changes -------------
* Log entries no longer allow anything but plain string objects as message text and file name.
* ``zlib`` is included in the list of statically built libraries.