Changed code to support older Python versions

venv/lib/python3.11/site-packages/httptools/parser/errors.py

@@ -0,0 +1,30 @@
+__all__ = ('HttpParserError',
+           'HttpParserCallbackError',
+           'HttpParserInvalidStatusError',
+           'HttpParserInvalidMethodError',
+           'HttpParserInvalidURLError',
+           'HttpParserUpgrade')
+
+
+class HttpParserError(Exception):
+    pass
+
+
+class HttpParserCallbackError(HttpParserError):
+    pass
+
+
+class HttpParserInvalidStatusError(HttpParserError):
+    pass
+
+
+class HttpParserInvalidMethodError(HttpParserError):
+    pass
+
+
+class HttpParserInvalidURLError(HttpParserError):
+    pass
+
+
+class HttpParserUpgrade(Exception):
+    pass