Can .py be complied?

[monkey]

Hi all, I am new to programming, already have a glace on introduction of
c++, java and finally decided on python. But I found that the .py file is
just like the source file, how can I make a program without revealing its
source? (may be my question is a little bit stupid)

[Harlin Seritt]

Hi monkey,

Not a stupid question especially if you're trying to create commercial
software and don't want to reveal your source. At any rate, you can use
py2exe to create a .exe file. It does have some cons to it since you
are compiling an interpreted script but it works fine in this capacity.
If you would like to obfuscate your code (disguise it) without an
executable you can try pyobfuscate as well. Just Google for these two
and you'll find easily.

Harlin Seritt

[Maurice LING]

monkey wrote:

Hi all, I am new to programming, already have a glace on introduction of
c++, java and finally decided on python. But I found that the .py file is
just like the source file, how can I make a program without revealing its
source? (may be my question is a little bit stupid)

It is generally not very easy or straight-forward. The developers of
CPython had generally intended that the source codes be the actual
distribution, and is not likely to change. (see the thread on "bytecode
non-backcompatibili ty")

For now, you can use pyfreeze to snap the application, which is to
bundle your application to a python interpreter (bootstrapping) as a
package but this will not create a portable application. You can only
run the application on the native system that it is frozen on. For
example, if i freeze my application on Mac OSX, I won't be able to run
that on MS Windows. Freezing bootstraps the system's python onto the
application.

If your application does not use any C modules, you can try to use
Jython instead. Program in python but use jythonc to convert it into
Java source files and package it into Java JAR files, then you will only
need to release the JAR files without needing to release your codes.

Cheers
Maurice

[ryan]

I don't know the exact details, but try using the compiled Python
scripts (bytecode). I believe they are semi-optimized and platform
independent. They are the .pyc and .pyo files generated when the script
is run.

[ryan]

ry**@ryankaskel .com wrote:

I don't know the exact details, but try using the compiled Python
scripts (bytecode). I believe they are semi-optimized and platform
independent. They are the .pyc and .pyo files generated when the script is run.

Okay, I found this documentation
<http://fux0r.phathooku ps.com/programming-tutorials/Python/tut/node43.html>.
It hides the source but you still need Python installed on the system
running the bytecode.

[monkey]

Thanks all of you guys, I found that python newsgroup is of wealthy
knowledge:

If you would like to obfuscate your code (disguise it) without an
executable you can try pyobfuscate as well.

Harlin Seritt

Yes, I want more options. Since the python doc mentioned py2exe only, and it
is difficult to understand how it work.(may be you guys know C and make
file, but I am still foolish here...)
It is generally not very easy or straight-forward.
For now, you can use pyfreeze to snap the application.... .
If your application does not use any C modules, you can try to use
Jython instead.

Cheers
Maurice
If using Jython to complie, is the end-user need JRE instead of Python
installed, or need both of them?
I don't know the exact details, but try using the compiled Python
scripts (bytecode). I believe they are semi-optimized and platform
independent. They are the .pyc and .pyo files generated when the script
is run.

ryan@ryankaske l

Is that means a .py convert to .pyc or .pyo, without the need of "make file"
as using py2exe?

[Filip Dreger]

U¿ytkownik "monkey" <[e-mail]> napisa³ w wiadomo¶ci
news:42******** **@rain.i-cable.com...

If using Jython to complie, is the end-user need JRE instead of
Python
installed, or need both of them?

Only JRE. Just like Java.

I don't know the exact details, but try using the compiled Python
scripts (bytecode). I believe they are semi-optimized and platform
independent. They are the .pyc and .pyo files generated when the
script
is run.

Is that means a .py convert to .pyc or .pyo, without the need of
"make file"
as using py2exe?

..pyc files are generated every time a module (any .py file can be a
module) is imported. So if you have a program, say, example.py, you
just start the python interpreter and write:

import example

And then example.pyc will appear beside example.py. This new file does
not require example.py (you can even delete it), and works on any
computer with Python installed (on Windows you can just double-click
it)
If you start the Python interpreter using:
python -OO (if you are using Windows, you shoud start the interpreter
from the command line, probably something like:
c:
cd \
python24\python -OO)
and then import your example.py, you will get a file example.pyo,
which is also stripped of any documentation strings (a bit harder to
decode).

regards,
Filip Dreger

[Kent Johnson]

monkey wrote:

It is generally not very easy or straight-forward.
For now, you can use pyfreeze to snap the application.... .
If your application does not use any C modules, you can try to use
Jython instead.

Cheers
Maurice

If using Jython to complie, is the end-user need JRE instead of Python
installed, or need both of them?

The end-user needs the JRE, not Python.

Kent

[Lucas Raab]

ry**@ryankaskel .com wrote:

ry**@ryankaskel .com wrote:

I don't know the exact details, but try using the compiled Python
scripts (bytecode). I believe they are semi-optimized and platform
independent . They are the .pyc and .pyo files generated when the

script

is run.

Okay, I found this documentation
<http://fux0r.phathooku ps.com/programming-tutorials/Python/tut/node43.html>.
It hides the source but you still need Python installed on the system
running the bytecode.

But those files can be decompyled.

--
--------------------------
Lucas Raab
lvraab"@"earthl ink.net
dotpyFE"@"gmail .com
AIM: Phoenix11890
MSN: dotpyfe"@"gmail .com
IRC: lvraab
ICQ: 324767918
Yahoo: Phoenix11890

[Maksim Kasimov]

"Maurice LING" <ma*********@ac m.org> wrote:
news:d4******** **@domitilla.ai oe.org...

If your application does not use any C modules, you can try to use
Jython instead. Program in python but use jythonc to convert it into
Java source files and package it into Java JAR files, then you will only
need to release the JAR files without needing to release your codes.

using Jython will not helps to hide your sources - jar-files are also easy
to decompile and to receive the source code (it will even looks like
original).
To avoid releasing your java-code (as far as it possible), the jar-files are
also necessary for processing by obfuscators
--
Best regards,
Maksim Kasimov
mailto: ka*****@i.com.u a