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Issue 25483: Add an opcode to make f-string formatting more robust.

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This commit is contained in:
Eric V. Smith 2015-11-03 12:45:05 -05:00
parent 2753a096e0
commit a78c7954d5
8 changed files with 205 additions and 168 deletions
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3
Lib/importlib/_bootstrap_external.py
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@ -223,12 +223,13 @@ def _write_atomic(path, data, mode=0o666):
# Python 3.5b1 3330 (PEP 448: Additional Unpacking Generalizations)
# Python 3.5b2 3340 (fix dictionary display evaluation order #11205)
# Python 3.5b2 3350 (add GET_YIELD_FROM_ITER opcode #24400)
# Python 3.6a0 3360 (add FORMAT_VALUE opcode #25483)
#
# MAGIC must change whenever the bytecode emitted by the compiler may no
# longer be understood by older implementations of the eval loop (usually
# due to the addition of new opcodes).
MAGIC_NUMBER = (3350).to_bytes(2, 'little') + b'\r\n'
MAGIC_NUMBER = (3360).to_bytes(2, 'little') + b'\r\n'
_RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little') # For import.c
_PYCACHE = '__pycache__'