How can I freeze a dual-mode (GUI and console) application using cx_Freeze?

Question

I\'ve developed a Python application that runs both in the GUI mode and the console mode. If any arguments are specified, it runs in a console mode else it runs in the GUI m

Answer 1

I found this bit on this page:

Tip for the console-less version: If you try to print anything, you will get a nasty error window, because stdout and stderr do not exist (and the cx_freeze Win32gui.exe stub will display an error Window). This is a pain when you want your program to be able to run in GUI mode and command-line mode. To safely disable console output, do as follows at the beginning of your program:

try:
    sys.stdout.write("\n")
    sys.stdout.flush()
except IOError:
    class dummyStream:
        ''' dummyStream behaves like a stream but does nothing. '''
        def __init__(self): pass
        def write(self,data): pass
        def read(self,data): pass
        def flush(self): pass
        def close(self): pass
    # and now redirect all default streams to this dummyStream:
    sys.stdout = dummyStream()
    sys.stderr = dummyStream()
    sys.stdin = dummyStream()
    sys.__stdout__ = dummyStream()
    sys.__stderr__ = dummyStream()
    sys.__stdin__ = dummyStream()

This way, if the program starts in console-less mode, it will work even if the code contains print statements. And if run in command-line mode, it will print out as usual. (This is basically what I did in webGobbler, too.)

Answer 2

Raymond Chen has written about this: http://blogs.msdn.com/b/oldnewthing/archive/2009/01/01/9259142.aspx. In short, it's not possible directly under Windows but there are some workarounds.

I'd suggest shipping two executables - cli and gui one.