Speed up starting compression (#9169)

(cherry picked from commit fce4f8e)
aio-libs · Sep 22, 2024 · 657f709 · 657f709
1 parent 206afde
commit 657f709
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/CHANGES/9169.misc.rst b/CHANGES/9169.misc.rst
@@ -0,0 +1 @@
+9174.misc.rst
diff --git a/aiohttp/web_response.py b/aiohttp/web_response.py
@@ -66,6 +66,8 @@ class ContentCoding(enum.Enum):
     identity = "identity"
 
 
+CONTENT_CODINGS = {coding.value: coding for coding in ContentCoding}
+
 ############################################################
 # HTTP Response classes
 ############################################################
@@ -427,8 +429,8 @@ async def _start_compression(self, request: "BaseRequest") -> None:
             # Encoding comparisons should be case-insensitive
             # https://www.rfc-editor.org/rfc/rfc9110#section-8.4.1
             accept_encoding = request.headers.get(hdrs.ACCEPT_ENCODING, "").lower()
-            for coding in ContentCoding:
-                if coding.value in accept_encoding:
+            for value, coding in CONTENT_CODINGS.items():
+                if value in accept_encoding:
                     await self._do_start_compression(coding)
                     return