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https://github.com/rocky/python-uncompyle6.git
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main.py, pysource.py DRY deparse_code from main. Is better on showing
exception errrors such as when a pyc file is not found uncompyle6: Hook in --grammar option to showing grammar. rules. Default now does not show timestamp.
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@@ -1,22 +1,18 @@
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from __future__ import print_function
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import os, sys, types
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import os, sys
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from uncompyle6.disas import check_object_path
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from uncompyle6 import verify
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from uncompyle6.semantics import pysource
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from uncompyle6.scanner import get_scanner
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from uncompyle6.load import load_module
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# FIXME: remove duplicate code from deparse_code
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def uncompyle(version, co, out=None, showasm=False, showast=False,
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showgrammar=False):
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"""
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disassembles and deparses a given code block 'co'
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"""
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assert isinstance(co, types.CodeType)
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# store final output stream for case of error
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real_out = out or sys.stdout
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print('# Python %s' % version, file=real_out)
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@@ -24,43 +20,25 @@ def uncompyle(version, co, out=None, showasm=False, showast=False,
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print('# Embedded file name: %s' % co.co_filename,
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file=real_out)
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scanner = get_scanner(version)
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tokens, customize = scanner.disassemble(co)
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if showasm:
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for t in tokens:
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print(t, file=real_out)
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print(file=out)
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# Build AST from disassembly.
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walk = pysource.Walker(version, out, scanner,
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showast=showast, showgrammar=showgrammar)
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try:
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ast = walk.build_ast(tokens, customize)
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deparsed = pysource.deparse_code(version, co, out, showasm, showast, showgrammar)
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except pysource.ParserError as e : # parser failed, dump disassembly
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print(e, file=real_out)
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raise
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del tokens # save memory
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# convert leading '__doc__ = "..." into doc string
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assert ast == 'stmts'
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# FIXME: remove duplicate code from deparse_code
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try:
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if ast[0][0] == pysource.ASSIGN_DOC_STRING(co.co_consts[0]):
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walk.print_docstring('', co.co_consts[0])
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del ast[0]
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if ast[-1] == pysource.RETURN_NONE:
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ast.pop() # remove last node
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if deparsed.ast[0][0] == pysource.ASSIGN_DOC_STRING(co.co_consts[0]):
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deparsed.print_docstring('', co.co_consts[0])
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del deparsed.ast[0]
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if deparsed.ast[-1] == pysource.RETURN_NONE:
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deparsed.ast.pop() # remove last node
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# todo: if empty, add 'pass'
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except:
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pass
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walk.mod_globs = pysource.find_globals(ast, set())
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walk.gen_source(ast, customize)
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for g in walk.mod_globs:
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walk.write('global %s ## Warning: Unused global' % g)
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if walk.ERROR:
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raise walk.ERROR
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def uncompyle_file(filename, outstream=None, showasm=False, showast=False):
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def uncompyle_file(filename, outstream=None, showasm=False, showast=False,
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showgrammar=False):
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"""
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decompile Python byte-code file (.pyc)
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"""
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@@ -68,14 +46,15 @@ def uncompyle_file(filename, outstream=None, showasm=False, showast=False):
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version, magic_int, co = load_module(filename)
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if type(co) == list:
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for con in co:
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uncompyle(version, con, outstream, showasm, showast)
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uncompyle(version, con, outstream, showasm, showast, showgrammar)
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else:
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uncompyle(version, co, outstream, showasm, showast)
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uncompyle(version, co, outstream, showasm, showast, showgrammar)
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co = None
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def main(in_base, out_base, files, codes, outfile=None,
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showasm=False, showast=False, do_verify=False):
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'''
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showasm=False, showast=False, do_verify=False,
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showgrammar=False):
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"""
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in_base base directory for input files
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out_base base directory for output files (ignored when
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files list of filenames to be uncompyled (relative to src_base)
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@@ -85,7 +64,7 @@ def main(in_base, out_base, files, codes, outfile=None,
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- <filename> outfile=<filename> (out_base is ignored)
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- files below out_base out_base=...
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- stdout out_base=None, outfile=None
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'''
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"""
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def _get_outstream(outfile):
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dir = os.path.dirname(outfile)
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failed_file = outfile + '_failed'
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@@ -121,7 +100,7 @@ def main(in_base, out_base, files, codes, outfile=None,
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# Try to uncmpile the input file
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try:
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uncompyle_file(infile, outstream, showasm, showast)
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uncompyle_file(infile, outstream, showasm, showast, showgrammar)
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tot_files += 1
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except ValueError as e:
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sys.stderr.write("\n# %s" % e)
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@@ -138,6 +117,7 @@ def main(in_base, out_base, files, codes, outfile=None,
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outstream.close()
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os.rename(outfile, outfile + '_failed')
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else:
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sys.stderr.write("\n# %s" % sys.exc_info()[1])
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sys.stderr.write("\n# Can't uncompile %s\n" % infile)
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else: # uncompile successfull
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if outfile:
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