Fix unable to trigger RateLimitExceededException. (#943)

I found when authorized, the ratelimit error message is different from unauthorized.

so i add this.

After studying hard with my 2b colleagues @AnYeMoWang , we finally realized how tests wrote.

😸 😸 😸 😸 😸 😸 😸

github/Requester.py

@@ -293,7 +293,10 @@ class Requester:
             cls = GithubException.TwoFactorException  # pragma no cover (Should be covered)
         elif status == 403 and output.get("message").startswith("Missing or invalid User Agent string"):
             cls = GithubException.BadUserAgentException
-        elif status == 403 and output.get("message").lower().startswith("api rate limit exceeded"):
+        elif status == 403 and (
+            output.get("message").lower().startswith("api rate limit exceeded")
+            or output.get("message").lower().endswith("please wait a few minutes before you try again.")
+        ):
             cls = GithubException.RateLimitExceededException
         elif status == 404 and output.get("message") == "Not Found":
             cls = GithubException.UnknownObjectException

github/tests/Exceptions.py

@@ -123,3 +123,12 @@ class SpecificExceptions(Framework.TestCase):
                 g.get_user("jacquev6")
 
         self.assertRaises(github.RateLimitExceededException, exceed)
+
+    def testAuthenticatedRateLimitExceeded(self):
+
+        def exceed():
+            for i in range(100):
+                res = self.g.search_code("jacquev6")
+                res.get_page(0)
+
+        self.assertRaises(github.RateLimitExceededException, exceed)