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bpo-38605: Revert making 'from __future__ import annotations' the default (GH-25490)

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This reverts commits 044a1048ca and 1be456ae9d, adapting the code to changes that happened after it.
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Pablo Galindo 2021-04-21 12:41:19 +01:00 • committed by GitHub
parent d35eef3b90
commit b0544ba77c
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32 changed files with 436 additions and 523 deletions
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Lib/importlib/_bootstrap_external.py
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@ -349,6 +349,7 @@ def _write_atomic(path, data, mode=0o666):
# Python 3.10a6 3434 (PEP 634: Structural Pattern Matching)
# Python 3.10a7 3435 Use instruction offsets (as opposed to byte offsets).
# Python 3.10b1 3436 (Add GEN_START bytecode #43683)
# Python 3.10b1 3437 (Undo making 'annotations' future by default - We like to dance among core devs!)
#
# MAGIC must change whenever the bytecode emitted by the compiler may no
@ -358,7 +359,7 @@ 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 = (3436).to_bytes(2, 'little') + b'\r\n'
MAGIC_NUMBER = (3437).to_bytes(2, 'little') + b'\r\n'
_RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little') # For import.c
_PYCACHE = '__pycache__'