Question

我试图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，目录中将组织不同的模板。

在/home/user/myapp/config下，我有以下文件：templates.py，其代码如下：

# -*- 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，将存在以下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，我收到以下消息：

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，基本上，尽管我们提供了目录，但Mako似乎无法找到index.html。我想我不了解Mako在查询中的用法。

注意：程序实际上是在Windows中运行的，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 /模板

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

Answer 2

我通常将模板分为每页模板和全局模板例如：

agents_B.forEach((agent) => (agent.children.sort(function(a, b) {
  var nameA = a.label.toUpperCase(); // ignore upper and lowercase
  var nameB = b.label.toUpperCase(); // ignore upper and lowercase
  if (nameA < nameB) {
    return -1;
  }
  if (nameA > nameB) {
    return 1;
  }

  // names must be equal
  return 0;
})) );

在这种情况下，我将始终使用查找目录导入全局文件

src/
├── constants.py
├── home
│   └── user
│       └── myapp
│           ├── app.config
│           ├── main.mako
│           ├── main.py
│           └── server.config
└── templates
    ├── e404.mako
    ├── e500.mako
    ├── footer.mako
    └── header.mako

# src/constants.py from mako.lookup import TemplateLookup mylookup = TemplateLookup(directories=['.', 'dir/to/src/templates/']) # home/user/myapp/main.py from src.constants import mylookup def main(): if i_have_errer: template = mylookup.get_template('e500.mako') else: template = mylookup.get_template('main.mako') return template.render_unicode()将首先在当前目录中查找 '.'将在全局templates/中查找更通用的模板

如何在mako中将模板拆分为多个文件/目录？

2 个答案: