File 304_python310-crash.patch of Package python-feedparser

From c55bd8ad37db89bd219783bc514d600c9523ed38 Mon Sep 17 00:00:00 2001
From: Kurt McKee <contactme@kurtmckee.org>
Date: Sat, 12 Jun 2021 15:32:05 -0500
Subject: [PATCH] Fix a crash that occurs with Python 3.10.0b2

---
 changelog.d/20210612_152233_kurtmckee_python3_10.rst | 4 ++++
 feedparser/html.py                                   | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 changelog.d/20210612_152233_kurtmckee_python3_10.rst

diff --git a/changelog.d/20210612_152233_kurtmckee_python3_10.rst b/changelog.d/20210612_152233_kurtmckee_python3_10.rst
new file mode 100644
index 00000000..3795cdc0
--- /dev/null
+++ b/changelog.d/20210612_152233_kurtmckee_python3_10.rst
@@ -0,0 +1,4 @@
+Fixed
+-----
+
+*   Fix a crash that occurs with Python 3.10.0b2.
diff --git a/feedparser/html.py b/feedparser/html.py
index be913311..f78270a3 100644
--- a/feedparser/html.py
+++ b/feedparser/html.py
@@ -337,7 +337,7 @@ def parse_declaration(self, i):
 
         try:
             return sgmllib.SGMLParser.parse_declaration(self, i)
-        except sgmllib.SGMLParseError:
+        except (AssertionError, sgmllib.SGMLParseError):
             # Escape the doctype declaration and continue parsing.
             self.handle_data('&lt;')
             return i+1