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verify.py: Don't try to verify bytecode against compiled code if

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magics of running interpreter mismatch bytecode to be compared.
load_module() now returns the magic found in the code object file.
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rocky
2015-12-18 22:04:50 -05:00
parent 6bc425b45e
commit 0a49c7a15b
4 changed files with 42 additions and 29 deletions
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27
uncompyle6/verify.py
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@@ -1,18 +1,22 @@
#
# (C) Copyright 2000-2002 by hartmut Goebel <h.goebel@crazy-compilers.com>
# (C) Copyright 2015 by Rocky Bernstein
#
# byte-code verifier for uncompyle
#
"""
byte-code verification
"""
from __future__ import print_function
import dis, inspect, operator, sys, types
import dis, inspect, operator, types
import uncompyle6
import uncompyle6.scanner as scanner
from uncompyle6 import PYTHON3
from uncompyle6.magics import PYTHON_MAGIC_INT
# FIXME: DRY
if (sys.version_info >= (3, 0)):
if PYTHON3:
truediv = operator.truediv
from functools import reduce
else:
@@ -344,14 +348,19 @@ class Token(scanner.Token):
def compare_code_with_srcfile(pyc_filename, src_filename):
"""Compare a .pyc with a source code file."""
version, code_obj1 = uncompyle6.load_module(pyc_filename)
version, magic_int, code_obj1 = uncompyle6.load_module(pyc_filename)
if magic_int != PYTHON_MAGIC_INT:
msg = ("Can't compare code - Python is running with magic %s, but code is magic %s "
% (PYTHON_MAGIC_INT, magic_int))
return msg
code_obj2 = uncompyle6._load_file(src_filename)
cmp_code_objects(version, code_obj1, code_obj2)
return None
def compare_files(pyc_filename1, pyc_filename2):
"""Compare two .pyc files."""
version, code_obj1 = uncompyle6.load_module(pyc_filename1)
version, code_obj2 = uncompyle6.load_module(pyc_filename2)
version, magic_int1, code_obj1 = uncompyle6.load_module(pyc_filename1)
version, magic_int2, code_obj2 = uncompyle6.load_module(pyc_filename2)
cmp_code_objects(version, code_obj1, code_obj2)
if __name__ == '__main__':
@@ -359,6 +368,4 @@ if __name__ == '__main__':
t2 = Token('LOAD_CONST', -421, 'code_object _expandLang', 55)
print(repr(t1))
print(repr(t2))
if (sys.version_info < (3, 0)):
print(cmp(t1, t2), cmp(t1.type, t2.type), cmp(t1.attr, t2.attr))
print(t1.type == t2.type, t1.attr == t2.attr)