Add ElementTree.fromstringlist()

Include ``fromstringlist()`` method introduced in Python 3.2.

Closes: #47
Co-authored-by: Antoine <antoine.sb@orange.fr>
Signed-off-by: Christian Heimes <christian@python.org>

CHANGES.txt

@@ -5,6 +5,7 @@ defusedxml 0.8.0.dev1
 ---------------------
 
 - Drop support for Python 2.7, 3.4, and 3.5.
+- Add ``defusedxml.ElementTree.fromstringlist()``
 
 
 defusedxml 0.7.0

README.md

@@ -719,6 +719,7 @@ See <https://www.python.org/psf/license> for licensing details.
 ## defusedxml 0.8.0.dev1
 
   - Drop support for Python 2.7, 3.4, and 3.5.
+  - Add `defusedxml.ElementTree.fromstringlist()`
 
 ## defusedxml 0.7.0
 

defusedxml/ElementTree.py

@@ -160,13 +160,26 @@ def fromstring(text, forbid_dtd=False, forbid_entities=True, forbid_external=Tru
 XML = fromstring
 
 
+def fromstringlist(sequence, forbid_dtd=False, forbid_entities=True, forbid_external=True):
+    parser = DefusedXMLParser(
+        target=_TreeBuilder(),
+        forbid_dtd=forbid_dtd,
+        forbid_entities=forbid_entities,
+        forbid_external=forbid_external,
+    )
+    for text in sequence:
+        parser.feed(text)
+    return parser.close()
+
+
 __all__ = [
     "ParseError",
     "XML",
     "XMLParse",
     "XMLParser",
     "XMLTreeBuilder",
     "fromstring",
+    "fromstringlist",
     "iterparse",
     "parse",
     "tostring",

defusedxml/cElementTree.py

@@ -14,6 +14,7 @@
     XMLParser,
     XMLTreeBuilder,
     fromstring,
+    fromstringlist,
     iterparse,
     parse,
     tostring,
@@ -35,6 +36,7 @@
     "XMLParser",
     "XMLTreeBuilder",
     "fromstring",
+    "fromstringlist",
     "iterparse",
     "parse",
     "tostring",

tests.py

@@ -188,6 +188,10 @@ def parseString(self, xmlstring, **kwargs):
         tree = self.module.fromstring(xmlstring, **kwargs)
         return self.module.tostring(tree)
 
+    def parseStringList(self, sequence, **kwargs):
+        tree = self.module.fromstringlist(sequence, **kwargs)
+        return self.module.tostring(tree)
+
     def iterparse(self, source, **kwargs):
         return list(self.module.iterparse(source, **kwargs))
 
@@ -203,6 +207,12 @@ def test_aliases(self):
         assert self.module.XMLParser is parser
         assert self.module.XMLParse is parser
 
+    def test_fromstringlist(self):
+        seq = ["<root>", '<tag id="one" />', '<tag id="two" />', "</root>"]
+        tree = self.module.fromstringlist(seq)
+        result = self.module.tostring(tree)
+        self.assertEqual(result, "".join(seq).encode("utf-8"))
+
     def test_import_order(self):
         from xml.etree import ElementTree as second_elementtree