template.py 文件源码

def lookupTemplate(self, request):
        """
        Use acquisition to look up the template named by self.templateFile,
        located anywhere above this object in the heirarchy, and use it
        as the template. The first time the template is used it is cached
        for speed.
        """
        if self.template:
            return microdom.parseString(self.template)
        if not self.templateDirectory:
            mod = sys.modules[self.__module__]
            if hasattr(mod, '__file__'):
                self.templateDirectory = os.path.split(mod.__file__)[0]
        # First see if templateDirectory + templateFile is a file
        templatePath = os.path.join(self.templateDirectory, self.templateFile)
        # Check to see if there is an already compiled copy of it
        templateName = os.path.splitext(self.templateFile)[0]
        compiledTemplateName = '.' + templateName + '.pxp'
        compiledTemplatePath = os.path.join(self.templateDirectory, compiledTemplateName)
        # No? Compile and save it
        if (not os.path.exists(compiledTemplatePath) or
        os.stat(compiledTemplatePath)[stat.ST_MTIME] < os.stat(templatePath)[stat.ST_MTIME]):
            compiledTemplate = microdom.parse(templatePath)
            pickle.dump(compiledTemplate, open(compiledTemplatePath, 'wb'), 1)
        else:
            compiledTemplate = pickle.load(open(compiledTemplatePath, "rb"))
        return compiledTemplate