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3e31f41552
Python bytecode now works. magics from 3.3 to Python 3.4 has been added. Some Python 3.4 scanner issues have been fixed.
112 lines
5.5 KiB
Python
Executable File
112 lines
5.5 KiB
Python
Executable File
from __future__ import print_function
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import struct, sys
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__all__ = ['magics', 'versions', 'magics2int']
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def __build_magic(magic):
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if (sys.version_info >= (3, 0)):
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return struct.pack('Hcc', magic, bytes('\r', 'utf-8'), bytes('\n', 'utf-8'))
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else:
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return struct.pack('Hcc', magic, '\r', '\n')
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def magic2int (magic):
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return struct.unpack('Hcc', magic)[0]
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by_magic = {}
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by_version = {}
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def __by_version(magics):
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for m, v in list(magics.items()):
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by_magic[m] = v
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by_version[v] = m
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return by_version
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versions = {
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# taken from from Python/import.c
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# or importlib/_bootstrap.py
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# magic, version
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__build_magic(20121): '1.5', # 1.5, 1.5.1, 1.5.2
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__build_magic(50428): '1.6', # 1.6
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__build_magic(50823): '2.0', # 2.0, 2.0.1
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__build_magic(60202): '2.1', # 2.1, 2.1.1, 2.1.2
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__build_magic(60717): '2.2', # 2.2
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__build_magic(62011): '2.3', # 2.3a0
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__build_magic(62021): '2.3', # 2.3a0
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__build_magic(62041): '2.4', # 2.4a0
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__build_magic(62051): '2.4', # 2.4a3
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__build_magic(62061): '2.4', # 2.4b1
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__build_magic(62071): '2.5', # 2.5a0
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__build_magic(62081): '2.5', # 2.5a0 (ast-branch)
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__build_magic(62091): '2.5', # 2.5a0 (with)
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__build_magic(62092): '2.5', # 2.5a0 (changed WITH_CLEANUP opcode)
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__build_magic(62101): '2.5', # 2.5b3 (fix wrong code: for x, in ...)
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__build_magic(62111): '2.5', # 2.5b3 (fix wrong code: x += yield)
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__build_magic(62121): '2.5', # 2.5c1 (fix wrong lnotab with for loops and
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# storing constants that should have been removed
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__build_magic(62131): '2.5', # 2.5c2 (fix wrong code: for x, in ... in listcomp/genexp)
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__build_magic(62151): '2.6', # 2.6a0 (peephole optimizations & STORE_MAP)
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__build_magic(62161): '2.6', # 2.6a1 (WITH_CLEANUP optimization)
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__build_magic(62171): '2.7', # 2.7a0 (optimize list comprehensions/change LIST_APPEND)
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__build_magic(62181): '2.7', # 2.7a0 (optimize conditional branches:
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# introduce POP_JUMP_IF_FALSE and POP_JUMP_IF_TRUE)
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__build_magic(62191): '2.7', # 2.7a0 (introduce SETUP_WITH)
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__build_magic(62201): '2.7', # 2.7a0 (introduce BUILD_SET)
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__build_magic(62211): '2.7', # 2.7a0 (introduce MAP_ADD and SET_ADD)
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__build_magic(3000): '3.0', # 3.000
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__build_magic(3010): '3.0', # 3.000 (removed UNARY_CONVERT)
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__build_magic(3020): '3.0', # 3.000 (added BUILD_SET)
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__build_magic(3030): '3.0', # 3.000 (added keyword-only parameters)
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__build_magic(3040): '3.0', # 3.000 (added signature annotations)
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__build_magic(3050): '3.0', # 3.000 (print becomes a function)
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__build_magic(3060): '3.0', # 3.000 (PEP 3115 metaclass syntax)
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__build_magic(3061): '3.0', # 3.000 (string literals become unicode)
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__build_magic(3071): '3.0', # 3.000 (PEP 3109 raise changes)
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__build_magic(3081): '3.0', # 3.000 (PEP 3137 make __file__ and __name__ unicode)
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__build_magic(3091): '3.0', # 3.000 (kill str8 interning)
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__build_magic(3101): '3.0', # 3.000 (merge from 2.6a0, see 62151)
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__build_magic(3103): '3.0', # 3.000 (__file__ points to source file)
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__build_magic(3111): '3.0', # 3.0a4 (WITH_CLEANUP optimization).
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__build_magic(3131): '3.0', # 3.0a5 (lexical exception stacking, including POP_EXCEPT)
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__build_magic(3141): '3.1', # 3.1a0 (optimize list, set and dict comprehensions)
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__build_magic(3151): '3.1', # 3.1a0 (optimize conditional branches)
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__build_magic(3160): '3.2', # 3.2a0 (add SETUP_WITH)
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__build_magic(3170): '3.2', # 3.2a1 (add DUP_TOP_TWO, remove DUP_TOPX and ROT_FOUR)
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__build_magic(3180): '3.2', # 3.2a2 (add DELETE_DEREF)
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__build_magic(3190): '3.3', # Python 3.3a0 3190 __class__ super closure changed
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__build_magic(3200): '3.3', # Python 3.3a0 3200 (__qualname__ added)
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__build_magic(3200): '3.3', # 3210 (added size modulo 2**32 to the pyc header)
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__build_magic(3220): '3.3', # Python 3.3a1 3220 (changed PEP 380 implementation)
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__build_magic(3230): '3.3', # Python 3.3a4 3230 (revert changes to implicit __class__ closure)
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__build_magic(3250): '3.4', # Python 3.4a1 3250 (evaluate positional default arg
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# keyword-only defaults)
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__build_magic(3260): '3.4', # Python 3.4a1 3260 (add LOAD_CLASSDEREF; allow locals of class to override
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# free vars)
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__build_magic(3270): '3.4', # Python 3.4a1 3270 (various tweaks to the __class__ closure)
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__build_magic(3280): '3.4', # Python 3.4a1 3280 (remove implicit class argument)
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__build_magic(3290): '3.4', # Python 3.4a4 3290 (changes to __qualname__ computation)
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__build_magic(3300): '3.4', # Python 3.4a4 3300 (more changes to __qualname__ computation)
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__build_magic(3310): '3.4', # Python 3.4rc2 3310 (alter __qualname__ computation)
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}
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magics = __by_version(versions)
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def __show(text, magic):
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print(text, struct.unpack('BBBB', magic), struct.unpack('HBB', magic))
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def test():
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import imp
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magic_20 = magics['2.0']
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current = imp.get_magic()
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current_version = struct.unpack('HBB', current)[0]
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magic_current = by_magic[ current ]
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print(type(magic_20), len(magic_20), repr(magic_20))
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print()
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print('This Python interpreter has version', magic_current)
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print('Magic code: ', current_version)
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print(type(magic_20), len(magic_20), repr(magic_20))
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if __name__ == '__main__':
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test()
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