Revert "bpo-36889: Merge asyncio streams (pythonGH-13251)"

Reverts changes made in 3.8 to asyncio streams (23b4b69).
aeros · Sep 27, 2019 · 02f9afe · 02f9afe
1 parent 0cba121
commit 02f9afe
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diff --git a/Lib/asyncio/__init__.py b/Lib/asyncio/__init__.py
@@ -3,7 +3,6 @@
 # flake8: noqa
 
 import sys
-import warnings
 
 # This relies on each of the submodules having an __all__ variable.
 from .base_events import *
@@ -44,40 +43,3 @@
 else:
     from .unix_events import *  # pragma: no cover
     __all__ += unix_events.__all__
-
-
-__all__ += ('StreamReader', 'StreamWriter', 'StreamReaderProtocol')  # deprecated
-
-
-def __getattr__(name):
-    global StreamReader, StreamWriter, StreamReaderProtocol
-    if name == 'StreamReader':
-        warnings.warn("StreamReader is deprecated since Python 3.8 "
-                      "in favor of Stream, and scheduled for removal "
-                      "in Python 3.10",
-                      DeprecationWarning,
-                      stacklevel=2)
-        from .streams import StreamReader as sr
-        StreamReader = sr
-        return StreamReader
-    if name == 'StreamWriter':
-        warnings.warn("StreamWriter is deprecated since Python 3.8 "
-                      "in favor of Stream, and scheduled for removal "
-                      "in Python 3.10",
-                      DeprecationWarning,
-                      stacklevel=2)
-        from .streams import StreamWriter as sw
-        StreamWriter = sw
-        return StreamWriter
-    if name == 'StreamReaderProtocol':
-        warnings.warn("Using asyncio internal class StreamReaderProtocol "
-                      "is deprecated since Python 3.8 "
-                      " and scheduled for removal "
-                      "in Python 3.10",
-                      DeprecationWarning,
-                      stacklevel=2)
-        from .streams import StreamReaderProtocol as srp
-        StreamReaderProtocol = srp
-        return StreamReaderProtocol
-
-    raise AttributeError(f"module {__name__} has no attribute {name}")