Show embeded timestamp of byte-decompiled file

pytest/test_load.py

@@ -1,8 +1,10 @@
+import sys
 from uncompyle6.load import load_file, check_object_path, load_module
 
 def test_load():
     """Basic test of load_file, check_object_path and load_module"""
     co = load_file(__file__)
     obj_path = check_object_path(__file__)
-    co2 = load_module(obj_path)
-    assert co == co2[2]
+    version, timestamp, magic_int, co2 = load_module(obj_path)
+    assert sys.version[0:3] == str(version)
+    assert co == co2

test/dis-compare.py

@@ -84,7 +84,7 @@ files=[
 
 for base in files:
     filename = "bytecode_%s/%s.pyc" % (PYTHON_VERSION_STR, base)
-    version, magic_int, co = uncompyle6.load_module(filename)
+    version, timestamp, magic_int, co = uncompyle6.load_module(filename)
     ok = True
 
     if type(co) == list:

uncompyle6/disas.py

@@ -54,7 +54,7 @@ def disassemble_file(filename, outstream=None):
     try to find the corresponding compiled object.
     """
     filename = check_object_path(filename)
-    version, magic_int, co = load_module(filename)
+    version, timestamp, magic_int, co = load_module(filename)
     if type(co) == list:
         for con in co:
             disco(version, con, outstream)

uncompyle6/load.py

@@ -3,6 +3,7 @@
 from __future__ import print_function
 
 import imp, marshal, os, py_compile, sys, tempfile
+from struct import unpack
 
 import uncompyle6.marsh
 from uncompyle6 import PYTHON3
@@ -82,7 +83,8 @@ def load_module(filename):
                               % version)
 
         # print version
-        fp.read(4) # timestamp
+        ts = fp.read(4)
+        timestamp = unpack("I", ts)[0]
         magic_int = magics.magic2int(magic)
         my_magic_int = magics.magic2int(imp.get_magic())
 
@@ -101,10 +103,13 @@ def load_module(filename):
             co = uncompyle6.marsh.load_code(fp, magic_int)
         pass
 
-    return version, magic_int, co
+    return version, timestamp, magic_int, co
 
 if __name__ == '__main__':
     co = load_file(__file__)
     obj_path = check_object_path(__file__)
-    co2 = load_module(obj_path)
-    assert co == co2[2]
+    version, timestamp, magic_int, co2 = load_module(obj_path)
+    print("version ", version, "magic int", magic_int)
+    import datetime
+    print(datetime.datetime.fromtimestamp(timestamp))
+    assert co == co2

uncompyle6/main.py

@@ -1,5 +1,5 @@
 from __future__ import print_function
-import inspect, os, sys
+import datetime, inspect, os, sys
 
 from uncompyle6.disas import check_object_path
 from uncompyle6 import verify
@@ -8,7 +8,7 @@ from uncompyle6.semantics import pysource
 from uncompyle6.load import load_module
 
 def uncompyle(version, co, out=None, showasm=False, showast=False,
-              showgrammar=False):
+              timestamp=None, showgrammar=False):
     """
     disassembles and deparses a given code block 'co'
     """
@@ -21,6 +21,9 @@ def uncompyle(version, co, out=None, showasm=False, showast=False,
     if co.co_filename:
         print('# Embedded file name: %s' % co.co_filename,
               file=real_out)
+    if timestamp:
+        print('# Compiled at: %s' % datetime.datetime.fromtimestamp(timestamp),
+              file=real_out)
 
     try:
         pysource.deparse_code(version, co, out, showasm, showast, showgrammar)
@@ -35,12 +38,15 @@ def uncompyle_file(filename, outstream=None, showasm=False, showast=False,
     """
 
     filename = check_object_path(filename)
-    version, magic_int, co = load_module(filename)
+    version, timestamp, magic_int, co = load_module(filename)
+
     if type(co) == list:
         for con in co:
-            uncompyle(version, con, outstream, showasm, showast, showgrammar)
+            uncompyle(version, con, outstream, showasm, showast,
+                      timestamp, showgrammar)
     else:
-        uncompyle(version, co, outstream, showasm, showast, showgrammar)
+        uncompyle(version, co, outstream, showasm, showast,
+                  timestamp, showgrammar)
     co = None
 
 def main(in_base, out_base, files, codes, outfile=None,

uncompyle6/verify.py

@@ -360,8 +360,8 @@ def compare_code_with_srcfile(pyc_filename, src_filename):
 
 def compare_files(pyc_filename1, pyc_filename2):
     """Compare two .pyc files."""
-    version, magic_int1, code_obj1 = uncompyle6.load_module(pyc_filename1)
-    version, magic_int2, code_obj2 = uncompyle6.load_module(pyc_filename2)
+    version, timestamp, magic_int1, code_obj1 = uncompyle6.load_module(pyc_filename1)
+    version, timestamp, magic_int2, code_obj2 = uncompyle6.load_module(pyc_filename2)
     cmp_code_objects(version, code_obj1, code_obj2)
 
 if __name__ == '__main__':