如何在mako中将模板拆分为多个文件/目录？

Question

我正在尝试了解如何在几个目录中拆分使用Mako和CherryPy的项目。我准备了以下目录结构：

[FOLDER] /home/user/myapp
         |- main.py
         |- app.config
         |- server.config
[FOLDER] /home/user/myapp/templates
[FOLDER] /home/user/myapp/templates/base
         |- index.html
         |- sidebar_menu.html
[FOLDER] /home/user/myapp/config
         |- templates.py

在/home/user/myapp/templates中，将在目录中组织不同的模板。

在/home/user/myapp/config下，我具有以下文件：templates.py，具有以下代码：

# -*- coding: utf-8 -*-

import mako.template
import mako.lookup

# Templates
templates_lookup = mako.lookup.TemplateLookup(
    directories=[
        '/templates',
        '/templates/base',
    ],
    module_directory='/tmp/mako_modules',
    input_encoding='utf-8', 
    output_encoding='utf-8', 
    encoding_errors='replace'
)

def serve_template(templatename, **kwargs):
    mytemplate = templates_lookup.get_template(templatename)
    print(mytemplate.render(**kwargs))

在/home/user/myapp下，将有以下main.py文件：

# -*- coding: utf-8 -*-

import os
import cherrypy
import mako.template
import mako.lookup
import config.templates

# Main Page
class Index(object):
    @cherrypy.expose
    def index(self): 
        t = config.templates.serve_template('index.html')
        print(t)
        return t

cherrypy.config.update("server.config")
cherrypy.tree.mount(Index(), '/', "app.config")
cherrypy.engine.start()

启动应用程序并访问/时，出现以下消息：

500 Internal Server Error

The server encountered an unexpected condition which prevented it from fulfilling the request.

Traceback (most recent call last):
  File "C:\Python37\lib\site-packages\mako\lookup.py", line 247, in get_template
    return self._check(uri, self._collection[uri])
KeyError: 'index.html'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python37\lib\site-packages\cherrypy\_cprequest.py", line 628, in respond
    self._do_respond(path_info)
  File "C:\Python37\lib\site-packages\cherrypy\_cprequest.py", line 687, in _do_respond
    response.body = self.handler()
  File "C:\Python37\lib\site-packages\cherrypy\lib\encoding.py", line 219, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "C:\Python37\lib\site-packages\cherrypy\_cpdispatch.py", line 54, in __call__
    return self.callable(*self.args, **self.kwargs)
  File ".....\myapp\main.py", line 18, in index
    t = config.templates.serve_template('index.html')
  File ".....\myapp\config\templates.py", line 19, in serve_template
    mytemplate = templates_lookup.get_template(templatename)
  File "C:\Python37\lib\site-packages\mako\lookup.py", line 261, in get_template
    "Cant locate template for uri %r" % uri)
mako.exceptions.TopLevelLookupException: Cant locate template for uri 'index.html'

Powered by CherryPy 18.1.0 

因此，尽管我们提供了目录，但看上去Mako似乎无法找到index.html。我想我不太了解Mako在查询中的用法。

注意：程序实际上在Windows中运行，我在上面使用UNIX文件结构只是为了使文件结构更易于阅读。

Python 3.7.2
CherryPy 18.1.0
Mako 1.0.7

Answer 1

您声明目录结构为/ home / user / myapp / templates

但是您要告诉Mako看看/ templates

也许将代码更改为：目录= ['/ home / user / myapp / templates'，'/ home / user / myapp / templates / base'，]，