bpo-34613: document the correct value of limit argument of asyncio.StreamReader (GH-9121)

Psycojoker · miss-islington · commit b4ec36200a95 · 2018-09-11T11:45:26.000-07:00
The default value of asyncio.StreamReader *limit* is `_DEFAULT_LIMIT` instead of `None`.  https://bugs.python.org/issue34613
diff --git a/Doc/library/asyncio-stream.rst b/Doc/library/asyncio-stream.rst
@@ -146,10 +146,12 @@ and work with streams:
 StreamReader
 ============
 
-.. class:: StreamReader(limit=None, loop=None)
+.. class:: StreamReader(limit=_DEFAULT_LIMIT, loop=None)
 
    This class is :ref:`not thread safe <asyncio-multithreading>`.
 
+   The *limit* argument's default value is set to _DEFAULT_LIMIT which is 2**16 (64 KiB)
+
    .. method:: exception()
 
       Get the exception.
