On Jan 9, 2008 5:13 AM, Giovanni Bajo <[EMAIL PROTECTED]> wrote:
>
> On 1/9/2008 7:03 AM, Kevin H wrote:
>
> > I have a very old python program (think Python 1.5) which was packages
> > using the McMillan installer. The original (unpackaged) source has
> > been lost. Is there a way to extract the original source from the
> > packaged version?
> >
> > Can someone here recommend a strategy for approaching this?
>
> Using the standalone program "ArchiveViewer.py" shipped with PyInstaller
> (or the original Installer), you can extract all the .pyc or .pyo files
> *and* the .py of the "startup" module (the first file that you run to
> execute the whole application). For smallish application that are wholly
> contained into a single .py file, this basically means that you can
> recover the whole source code.
> [[ NOTE: this is not true anymore with PyInstaller: now only .pyc are
> embedded into the packaged executables ]]
>
> Once you get the .pyc/.pyo, there are commercial reverse-engineering
> services that should give you the equivalent .py sources.
>
> Hope this helps!
> --
> Giovanni Bajo
>
>
Thanks for the reply Giovanni!
I tried ArchiveViewer.py, but all it gave me was the following traceback:
Traceback (most recent call last):
File "ArchiveViewer.py", line 154, in ?
main()
File "ArchiveViewer.py", line 34, in main
arch = getArchive(name)
File "ArchiveViewer.py", line 100, in getArchive
return carchive.CArchive(nm)
File "E:\data\code\BloodNDice\_recovery
attempt\pyinstaller_1.3\pyinstaller-1.3\carchive.py", line 137, in __init__
archive.Archive.__init__(self, path, start)
File "E:\data\code\BloodNDice\_recovery
attempt\pyinstaller_1.3\pyinstaller-1.3\archive.py", line 98, in __init__
self.checkmagic()
File "E:\data\code\BloodNDice\_recovery
attempt\pyinstaller_1.3\pyinstaller-1.3\carchive.py", line 156, in
checkmagic
raise RuntimeError, "%s is not a valid %s archive file" \
RuntimeError: ..\..\..\bnd\bnd_0_9.exe is not a valid CArchive archive file
The good news is, by opening the .exe file in a text editor (Scite) I was
able to get the source of the top-level .py file. There's another .pyc file
in there somewhere, but I'm not able to pick it out using an editor.
Fortunately, it looks like there's only one utility function in the .pyc
file, so I can probably recreate that.
Thanks for the help!
Kevin Horn
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