SNOW-721249 retry http response 429 and fix olddriver tests (#1389)

Author: sfc-gh-mkeller

src/snowflake/connector/compat.py

@@ -74,6 +74,7 @@ def IS_BINARY(v):
 BAD_GATEWAY = http.client.BAD_GATEWAY
 BAD_REQUEST = http.client.BAD_REQUEST
 REQUEST_TIMEOUT = http.client.REQUEST_TIMEOUT
+TOO_MANY_REQUESTS = http.client.TOO_MANY_REQUESTS
 SERVICE_UNAVAILABLE = http.client.SERVICE_UNAVAILABLE
 GATEWAY_TIMEOUT = http.client.GATEWAY_TIMEOUT
 FORBIDDEN = http.client.FORBIDDEN

src/snowflake/connector/network.py

@@ -30,6 +30,7 @@
     OK,
     REQUEST_TIMEOUT,
     SERVICE_UNAVAILABLE,
+    TOO_MANY_REQUESTS,
     UNAUTHORIZED,
     BadStatusLine,
     IncompleteRead,
@@ -181,6 +182,7 @@ def is_retryable_http_code(code: int) -> bool:
         FORBIDDEN,  # 403
         METHOD_NOT_ALLOWED,  # 405
         REQUEST_TIMEOUT,  # 408
+        TOO_MANY_REQUESTS,  # 429
     )
 
 

tox.ini

@@ -77,6 +77,7 @@ basepython = python3.7
 description = run the old driver tests with pytest under {basepython}
 deps =
     pip >= 19.3.1
+    pyOpenSSL==22.1.0
     snowflake-connector-python==1.9.1
     azure-storage-blob==2.1.0
     pandas