The goal of Pyshield is to let you write and debug Python scripts conveniently and easily, then publish the scripts in various forms and in any platforms. By Pyshield, you can publish the encrypted scriipts (DES3) instead of plain scripts, you can transfer the script to a standalone executable which runs on Linux or Windows, you can build more files (such as scripts, modules, extensions, packages and data files) to one installation file which can be Microsoft Installer, RedHad RPM, tar, zip etc. If you're customed to use distutils package to build your installation, you can find a GUI interface for distutils package. Pyshield includes an editor simulates Emacs python-mode: Highlight python syntax, Fold the code block, Show the prototype or doc string of class or function, Code Tree Browser, Smart Completion, Special completion ruler for python language let you write code more easy. A power GUI debugger used to find the bugs in your scripts, supports breakpoint, watchpoint, catchpoint, and break condition, commands just as GDB can do, even multi-threads debugging. Project management, using project you can do: Manage the scripts, modules, extensions, packages and data files in one project. And you can integrate the trial-register function to your product by Pyshield. Multi-platform support and cross-publish. Pyshield can run on Windows and Linux platform also supports cross-publish. In other words, you can developed under the Windows platform, then you can generate the installation package which can run on both Windows and Linux by Pyshield; and vice versa, you can developed under Linux, and by using Pyshield to make the installation package running on Windows and Linux.