templates.py 文件源码

def get_source(self, environment, template_name):
        final_path = template_name
        if not template_name.startswith("/"):
            for tdir in self.template_dirs:
                full_path = os.path.join(tdir, template_name)
                if os.path.isfile(full_path):
                    final_path = full_path
                    break
                else:
                    full_path = os.path.join(tdir, template_name + self.template_extension)
                    if os.path.isfile(full_path):
                        final_path = full_path
                        break
            else:
                # See if parent can return it
                if self.parent_loader:
                    return self.parent_loader.get_source(environment, template_name)
                else:
                    source = pkgutil.get_data("onering", "data/templates/" + template_name).decode('utf-8')
                    return source, final_path, lambda: True

        with file(final_path) as f:
            source = f.read().decode('utf-8')
        return source, final_path, lambda: mtime == getmtime(final_path)