Private attribute for doing work

def _dowork(self, dir1, dir2, copyfunc=None, updatefunc=None):
        """ Private attribute for doing work """

        if self._verbose:
            self.log('Source directory: %s:' % dir1)

        self._dcmp = self._compare(dir1, dir2)

        # Files & directories only in target directory
        if self._purge:
            for f2 in self._dcmp.right_only:
                fullf2 = os.path.join(self._dir2, f2)
                if self._verbose:
                    self.log('Deleting %s' % fullf2)
                try:
                    if os.path.isfile(fullf2):
                        try:
                            os.remove(fullf2)
                            self._deleted.append(fullf2)
                            self._numdelfiles += 1
                        except OSError as e:
                            self.log(str(e))
                            self._numdelffld += 1
                    elif os.path.isdir(fullf2):
                        try:
                            shutil.rmtree(fullf2, True)
                            self._deleted.append(fullf2)
                            self._numdeldirs += 1
                        except shutil.Error as e:
                            self.log(str(e))
                            self._numdeldfld += 1

                except Exception as e:  # of any use ?
                    self.log(str(e))
                    continue

        # Files & directories only in source directory
        for f1 in self._dcmp.left_only:
            try:
                st = os.stat(os.path.join(self._dir1, f1))
            except os.error:
                continue

            if stat.S_ISREG(st.st_mode):
                if copyfunc:
                    copyfunc(f1, self._dir1, self._dir2)
                    self._added.append(os.path.join(self._dir2, f1))
            elif stat.S_ISDIR(st.st_mode):
                to_make = os.path.join(self._dir2, f1)
                if not os.path.exists(to_make):
                    os.makedirs(to_make)
                    self._numnewdirs += 1
                    self._added.append(to_make)

        # common files/directories
        for f1 in self._dcmp.common:
            try:
                st = os.stat(os.path.join(self._dir1, f1))
            except os.error:
                continue

            if stat.S_ISREG(st.st_mode):
                if updatefunc:
                    updatefunc(f1, self._dir1, self._dir2)