bpo-35482: Fixes HTML escaping in CHM index and build location of NEWS file (GH-11224)

diff --git a/Doc/tools/extensions/escape4chm.py b/Doc/tools/extensions/escape4chm.py
index 6f2e357..e999971 100644
--- a/Doc/tools/extensions/escape4chm.py
+++ b/Doc/tools/extensions/escape4chm.py
@@ -8,6 +8,8 @@
 import re
 from html.entities import codepoint2name
 
+from sphinx.util.logging import getLogger
+
 # escape the characters which codepoint > 0x7F
 def _process(string):
     def escape(matchobj):
@@ -23,7 +25,7 @@
 
 def escape_for_chm(app, pagename, templatename, context, doctree):
     # only works for .chm output
-    if not hasattr(app.builder, 'name') or app.builder.name != 'htmlhelp':
+    if getattr(app.builder, 'name', '') != 'htmlhelp':
         return
 
     # escape the `body` part to 7-bit ASCII
@@ -31,9 +33,25 @@
     if body is not None:
         context['body'] = _process(body)
 
+def fixup_keywords(app, exception):
+    # only works for .chm output
+    if getattr(app.builder, 'name', '') != 'htmlhelp' or exception:
+        return
+
+    getLogger(__name__).info('fixing HTML escapes in keywords file...')
+    outdir = app.builder.outdir
+    outname = app.builder.config.htmlhelp_basename
+    with app.builder.open_file(outdir, outname + '.hhk', 'r') as f:
+        index = f.read()
+    with app.builder.open_file(outdir, outname + '.hhk', 'w') as f:
+        f.write(index.replace(''', '''))
+
 def setup(app):
     # `html-page-context` event emitted when the HTML builder has
     # created a context dictionary to render a template with.
     app.connect('html-page-context', escape_for_chm)
+    # `build-finished` event emitted when all the files have been
+    # output.
+    app.connect('build-finished', fixup_keywords)
 
     return {'version': '1.0', 'parallel_read_safe': True}
diff --git a/Doc/tools/extensions/pyspecific.py b/Doc/tools/extensions/pyspecific.py
index 10e4a4d..6631743 100644
--- a/Doc/tools/extensions/pyspecific.py
+++ b/Doc/tools/extensions/pyspecific.py
@@ -11,7 +11,7 @@
 
 import re
 import io
-from os import path
+from os import getenv, path
 from time import asctime
 from pprint import pformat
 from docutils.io import StringOutput
@@ -292,7 +292,9 @@
         fname = self.arguments[0]
         source = self.state_machine.input_lines.source(
             self.lineno - self.state_machine.input_offset - 1)
-        source_dir = path.dirname(path.abspath(source))
+        source_dir = getenv('PY_MISC_NEWS_DIR')
+        if not source_dir:
+            source_dir = path.dirname(path.abspath(source))
         fpath = path.join(source_dir, fname)
         self.state.document.settings.record_dependencies.add(fpath)
         try: