1 files changed, 1 insertions, 4 deletions
diff --git a/Lib/_pyio.py b/Lib/_pyio.py
index 163cf9d..7f247ff 100644
--- a/Lib/_pyio.py
+++ b/Lib/_pyio.py
@@ -638,10 +638,7 @@ class RawIOBase(IOBase):
     def readall(self):
         """Read until EOF, using multiple read() call."""
         res = bytearray()
-        while True:
-            data = self.read(DEFAULT_BUFFER_SIZE)
-            if not data:
-                break
+        while data := self.read(DEFAULT_BUFFER_SIZE):
             res += data
         if res:
             return bytes(res)