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bpo-31709: Update importlib magic #3906

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Merged
merged 3 commits into from
Oct 6, 2017
Merged

bpo-31709: Update importlib magic #3906

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366954e
bpo-31709: Update importlib magic
1st1 Oct 6, 2017
74a03d0
regen importlib
1st1 Oct 6, 2017
b6f92f6
Update dis module docs re GET_AITER
1st1 Oct 6, 2017
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7 changes: 5 additions & 2 deletions Doc/library/dis.rst
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Expand Up @@ -558,8 +558,11 @@ the original TOS1.

.. opcode:: GET_AITER

Implements ``TOS = get_awaitable(TOS.__aiter__())``. See ``GET_AWAITABLE``
for details about ``get_awaitable``
Implements ``TOS = TOS.__aiter__()``.

.. versionchanged:: 3.7
Returning awaitable objects from ``__aiter__`` is no longer
supported.


.. opcode:: GET_ANEXT
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3 changes: 2 additions & 1 deletion Lib/importlib/_bootstrap_external.py
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Expand Up @@ -241,6 +241,7 @@ def _write_atomic(path, data, mode=0o666):
# Python 3.6b2 3378 (add BUILD_TUPLE_UNPACK_WITH_CALL #28257)
# Python 3.6rc1 3379 (more thorough __class__ validation #23722)
# Python 3.7a0 3390 (add LOAD_METHOD and CALL_METHOD opcodes)
# Python 3.7a0 3391 (update GET_AITER #31709)
#
# MAGIC must change whenever the bytecode emitted by the compiler may no
# longer be understood by older implementations of the eval loop (usually
Expand All @@ -249,7 +250,7 @@ def _write_atomic(path, data, mode=0o666):
# Whenever MAGIC_NUMBER is changed, the ranges in the magic_values array
# in PC/launcher.c must also be updated.

MAGIC_NUMBER = (3390).to_bytes(2, 'little') + b'\r\n'
MAGIC_NUMBER = (3391).to_bytes(2, 'little') + b'\r\n'
_RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little') # For import.c

_PYCACHE = '__pycache__'
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