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-rw-r--r--Lib/asyncio/constants.py9
1 files changed, 9 insertions, 0 deletions
diff --git a/Lib/asyncio/constants.py b/Lib/asyncio/constants.py
index 0ad974f..739b0a7 100644
--- a/Lib/asyncio/constants.py
+++ b/Lib/asyncio/constants.py
@@ -1,3 +1,5 @@
+import enum
+
# After the connection is lost, log warnings after this many write()s.
LOG_THRESHOLD_FOR_CONNLOST_WRITES = 5
@@ -11,3 +13,10 @@ DEBUG_STACK_DEPTH = 10
# Number of seconds to wait for SSL handshake to complete
SSL_HANDSHAKE_TIMEOUT = 10.0
+
+# The enum should be here to break circular dependencies between
+# base_events and sslproto
+class _SendfileMode(enum.Enum):
+ UNSUPPORTED = enum.auto()
+ TRY_NATIVE = enum.auto()
+ FALLBACK = enum.auto()