description - it provides debug output - it generates optimized bytecode (resulting in pyo files- do not run import site to look for python paths on startup - verbose output (detailed trace on import statements- disable class-based built-in exceptions (just use strings)obsolete starting with version - cmd file run python script sent in as cmd string run python script from given file ( script from the command-line python script can be executed at command line by invoking the interpreter on your applicationas in the following$python script py pythonscript py windows/dos unix/linuxor unix/linuxor :>python script py notebe sure the file permission mode allows execution ( integrated development environment you can run python from graphical user interface (guienvironment as wellif you have gui application on your system that supports python unixidle is the very first unix ide for python windowspythonwin is the first windows interface for python and is an ide with gui macintoshthe macintosh version of python along with the idle ide is available from the main websitedownloadable as either macbinary or binhex' files