def tryImport(self, name, dir):
        """
        Imports a brush module. Called by importBrushModules
        :param name, name of the module to import.
        """
        embeded = bool(dir == "stock-brushes")
        try:
            path = os.path.join(dir, (name + ".py"))
            if isinstance(path, unicode) and DEF_ENC != "UTF-8":
                path = path.encode(DEF_ENC)
            globals()[name] = m = imp.load_source(name, path)
            if not embeded:
                old_trn_path = albow.translate.getLangPath()
                if "trn" in sys.modules.keys():
                    del sys.modules["trn"]
                import albow.translate as trn
                trn_path = os.path.join(directories.brushesDir, name)
                if os.path.exists(trn_path):
                    trn.setLangPath(trn_path)
                    trn.buildTranslation(config.settings.langCode.get())
                m.trn = trn
                albow.translate.setLangPath(old_trn_path)
                albow.translate.buildTranslation(config.settings.langCode.get())
                self.editor.mcedit.set_update_ui(True)
                self.editor.mcedit.set_update_ui(False)
            m.materials = self.editor.level.materials
            m.tool = self
            m.createInputs(m)
            return m
        except Exception as e:
            print traceback.format_exc()
            alert(_(u"Exception while importing brush mode {}. See console for details.\n\n{}").format(name, e))
            return object()

        Imports a brush module. Called by importBrushModules
        :param name, name of the module to import.
        
editortools/brush.py