added comment

Author: daniel-sanche

google/api_core/retry/retry_streaming.py

@@ -109,6 +109,8 @@ def retry_target_stream(
     error_list: list[Exception] = []
     sleep_iter = iter(sleep_generator)
 
+    # continue trying until an attempt completes, or a terminal exception is raised in _retry_error_helper
+    # TODO: support max_attempts argument: https://github.com/googleapis/python-api-core/issues/535
     while True:
         # Start a new retry loop
         try:

google/api_core/retry/retry_streaming_async.py

@@ -112,6 +112,8 @@ async def retry_target_stream(
     sleep_iter = iter(sleep_generator)
     target_is_generator: bool | None = None
 
+    # continue trying until an attempt completes, or a terminal exception is raised in _retry_error_helper
+    # TODO: support max_attempts argument: https://github.com/googleapis/python-api-core/issues/535
     while True:
         # Start a new retry loop
         try:

google/api_core/retry/retry_unary.py

@@ -140,6 +140,8 @@ def retry_target(
     error_list: list[Exception] = []
     sleep_iter = iter(sleep_generator)
 
+    # continue trying until an attempt completes, or a terminal exception is raised in _retry_error_helper
+    # TODO: support max_attempts argument: https://github.com/googleapis/python-api-core/issues/535
     while True:
         try:
             result = target()

google/api_core/retry/retry_unary_async.py

@@ -151,6 +151,8 @@ async def retry_target(
     error_list: list[Exception] = []
     sleep_iter = iter(sleep_generator)
 
+    # continue trying until an attempt completes, or a terminal exception is raised in _retry_error_helper
+    # TODO: support max_attempts argument: https://github.com/googleapis/python-api-core/issues/535
     while True:
         try:
             return await target()