The following are a few other freezing tools:

• Freeze: This tool is shipped with the standard Python distribution. Freeze can only be used to compile executables on Unix systems.  However, the program is overly simplistic, as it fails to handle even the common third-party libraries. More information on this is available at http://wiki.python.org/moin/Freeze.
• cx_Freeze: This tool is similar to py2exe and py2app, but it claims to be portable across all platforms on which Python works. More information on this is available at http://cx-freeze.sourceforge.net/index.html.

If you're distributing a small program, a freezing tool might be just what you need. 

However, if you have a large program, say, with lots of external third-party library dependencies, or dependencies that are not supported by any existing freezing tool, your application might be the right candidate for bundling the
Python interpreter with your application.