mhlib.py 文件源码

def createmessage(self, n, txt):
        """Create a message, with text from the open file txt."""
        path = self.getmessagefilename(n)
        backuppath = self.getmessagefilename(',%d' % n)
        try:
            os.rename(path, backuppath)
        except os.error:
            pass
        ok = 0
        BUFSIZE = 16*1024
        try:
            f = open(path, "w")
            while 1:
                buf = txt.read(BUFSIZE)
                if not buf:
                    break
                f.write(buf)
            f.close()
            ok = 1
        finally:
            if not ok:
                try:
                    os.unlink(path)
                except os.error:
                    pass