> > > > Now if I could just turn that into a COM object (seriously, I'm trying to > figure > out how to call movingballs2.py, a Vpython script, from Visual FoxPro). > >
OK, I turned it into a COM object, pretty mickey mouse, yet instructive (at least to me): VFP = Visual FoxPro and in the middle you'll see how I'm in the interactive shell of that language, and creating this Python object. Even though control returns to the host language, the threads spawn and do their business, taking their time to fill a randomly named text file in some pre-specified directory. My thanks to Mark Hammond the one and only for swinging by on comp.lang.python -- more acknowledgment in my blog: http://mybizmo.blogspot.com/2010/12/office-work.html Here's the COM version (pycomsupport dependency not included for brevity) import threading from random import choice, randint import pycomsupport import os import time applause = ["Bravo!\n","Clap Clap\n","Yay!\n","whistle\n","shreek\n"] laugh = ["chuckle\n", "guffaw\n", "hoot\n", "howl\n", "ROFL\n"] boo = ["Boo!\n", "Nada mas!\n", "hissss\n"] class MPSS_Audience ( object ): _public_methods_ = [ 'applause_track', 'laugh_track', 'boo_track' ] _reg_progid_ = "LoadOpt.Feedback" # Use pythoncom.CreateGuid()" to make a new clsid _reg_clsid_ = '{BFE032DC-0F31-47CA-A714-7D6AADA41F5C}' def __init__(self, ident = None): self.logger = ident fp = os.path.normpath("C:\Users\Kirby\Documents\Visual FoxPro Projects\mpss") fn = pycomsupport.randomstring(8)+".txt" self.output = os.path.join(fp, fn) def _noise_threads(self, noise_type): hnd = open(self.output, 'w') for i in range(10): AudiencePerson(hnd, choice(noise_type), randint(0,5)).start() def applause_track(self): self._noise_threads(applause) def laugh_track(self): self._noise_threads(laugh) def boo_track(self): self._noise_threads(boo) class AudiencePerson( threading.Thread ): def __init__(self, output, an, interval): self.output = output self.audience_noise = an self.interval = interval super(AudiencePerson, self).__init__() def run(self): for i in range(5): self.output.write(self.getName() + ": " + self.audience_noise) time.sleep(self.interval) def testme(): loObj = MPSS_Audience(1) loObj.laugh_track() if __name__ == "__main__": print "Registering COM server..." import win32com.server.register win32com.server.register.UseCommandLine(MPSS_Audience) testme() On the VFP side: loCircus = CREATEOBJECT("Loadopt.Feedback", "some param") loCircus.applause_track() control returns immediately, even though the text file takes quite awhile to fill, thanks to the several second delays between thread writes. The final file: Thread-1: whistle Thread-2: shreek Thread-3: shreek Thread-4: whistle Thread-5: Yay! Thread-6: whistle Thread-7: Yay! Thread-7: Yay! Thread-7: Yay! Thread-7: Yay! Thread-7: Yay! Thread-8: Clap Clap Thread-9: Clap Clap Thread-9: Clap Clap Thread-9: Clap Clap Thread-9: Clap Clap Thread-9: Clap Clap Thread-10: Clap Clap Thread-2: shreek Thread-8: Clap Clap Thread-2: shreek Thread-8: Clap Clap Thread-2: shreek Thread-4: whistle Thread-5: Yay! Thread-6: whistle Thread-8: Clap Clap Thread-1: whistle Thread-2: shreek Thread-3: shreek Thread-8: Clap Clap Thread-10: Clap Clap Thread-4: whistle Thread-5: Yay! Thread-6: whistle Thread-1: whistle Thread-3: shreek Thread-4: whistle Thread-5: Yay! Thread-6: whistle Thread-10: Clap Clap Thread-1: whistle Thread-4: whistle Thread-3: shreek Thread-5: Yay! Thread-6: whistle Thread-10: Clap Clap Thread-1: whistle Thread-3: shreek Thread-10: Clap Clap Kirby
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