Tightening the runtime type check for ssl

aiohttp/client.py

@@ -784,9 +784,13 @@ async def _ws_connect(
             extstr = ws_ext_gen(compress=compress)
             real_headers[hdrs.SEC_WEBSOCKET_EXTENSIONS] = extstr
 
-        if not isinstance(ssl, SSL_ALLOWED_TYPES):
+        # We need this code to keep backward compatibility. If ssl is True, we transform it to None
+        if ssl is True:
+            ssl = None
+
+        if not isinstance(ssl, SSL_ALLOWED_TYPES) and ssl is not False:
             raise TypeError(
-                "ssl should be SSLContext, bool, Fingerprint, "
+                "ssl should be SSLContext, Fingerprint, "
                 "or None, got {!r} instead.".format(ssl)
             )
 

aiohttp/client_reqrep.py

@@ -141,7 +141,7 @@ def check(self, transport: asyncio.Transport) -> None:
 
 
 if ssl is not None:
-    SSL_ALLOWED_TYPES = (ssl.SSLContext, bool, Fingerprint, type(None))
+    SSL_ALLOWED_TYPES = (ssl.SSLContext, Fingerprint, type(None))
 else:  # pragma: no cover
     SSL_ALLOWED_TYPES = type(None)