How to print to stdout from Python script with .pyw extension?

One way I've done this is use py2exe's custom-boot-script to redirect sys.stdout to a file when a certain command line switch is present.

I'll have some sample code here when I can dig it up, but check the link out to get you started.

You can tell wxPython's App instance to redirect too. Just set the "redirect" parameter to True:

app = wx.App(True)

Another solution would be to use Python's logging module instead of relying on printing strings to stdout. Using that, you can log to a file or to various web protocols, among others. See the documentation for full details: http://docs.python.org/library/logging.html

There's also a good introductory tutorial here: http://www.doughellmann.com/PyMOTW/logging/

I finally solved my problem with some kind of a nasty trick. I get the help information from argparse like that:

class Parser(object):    def __init__(self):        [...init argparser...]        self.help = ""        self.__argparser.print_help(self)    def write(self, message):        self.help += message

Then I just show the help information in the about dialog.

I would still prefer to re-enable sys.stdout, but this works for now.Thanks to all suggestions!