If you really want to learn about obfuscating python bytecode so it can't be reverse engineered (easily) -- there are people who are doing it. Search for 'pyasm' on github as a starting point. tldr; yes people are patching .pyc files. yes you can make them a nightmare to disassemble. and yes it slows down your code.
=D also yes, you can be tricked into running a patched .pyc file that has nothing to do with your .py file, you have been warned. be careful out there. On Tue, Mar 15, 2016 at 2:51 PM, Thomas 'PointedEars' Lahn < pointede...@web.de> wrote: > Chris Angelico wrote: > > > On Wed, Mar 16, 2016 at 5:59 AM, Thomas 'PointedEars' Lahn > > <pointede...@web.de> wrote: > >> That said, not distributing the source code of a program as well (or at > >> least making it available to users in some way) strikes me as unpythonic > >> since Python is at least Open Source software, and Python 2.0.1, 2.1.1 > >> and newer are GPL-compatible Free Software. > > > > gcc is also free software. Does that mean that all C programs should > > be free software? No. > > IMNSHO, yes. At the very least because in using gcc you benefited from the > free software community, so you should give back to the free software > community accordingly. > > > However, since all software can be reverse-compiled (particularly > > You mean _decompiled_. > > > byte-code like .pyc files), > > Yes, it is easier with bytecode *if you know the VM*. > > > the only truly reliable way to make completely closed software is to > > restrict access to it in all forms. > > ACK. > > > In today's world, that usually means providing it as a web service. > > ACK. That’s why RMS calls it SaaSS, Service as a Software Substitute :) > > > Otherwise, you have to assume that anyone can see your source. The > > only difference between open-source and closed-source is the license, > > not the ability to see stuff. > > If that were the case and reverse engineering were an easy task that > everyone could do, we would have a lot more free software variants of > proprietary software. Particularly, we would have a lot less proprietary > device drivers. ISTM that you do not know what you are talking about here. > > -- > PointedEars > > Twitter: @PointedEars2 > Please do not cc me. / Bitte keine Kopien per E-Mail. > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
