将Google App Engine更新为Python 2.7

I've tried to update my app before by changing

我之前尝试通过更改来更新我的应用

runtime: python27 , threadsafe: true , script: main.app"

runtime:python27,threadsafe:true,script:main.app“

It did work and was on python 2.7 but it didn't run properly I guess because my index.html didn't display when I went to the url http://dhsenviro.appspot.com. It is running on 2.5 now (because I want to keep it up). robots.txt is empty. How can I update it to 2.7 or should I update it to 3.x?

它确实有效,并且在python 2.7上但它运行不正常我猜是因为当我访问网址http://dhsenviro.appspot.com时我的index.html没有显示。它现在运行在2.5(因为我想保持它)。 robots.txt是空的。如何将其更新为2.7或者我应该将其更新为3.x?

app.yaml :

application: dhsenviro
version: 1
runtime: python
api_version: 1

handlers:
- url: /(.*\.(gif|png|jpg|ico|js|css|psd|swf))
  static_files: \1
  upload: (.*\.(gif|png|jpg|ico|js|css|psd|swf))

- url: /robots.txt
  static_files: robots.txt
  upload: robots.txt 

- url: /.*
  script: main.py

main.py :

import os
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
from google.appengine.ext.webapp import template

class MainHandler(webapp.RequestHandler):
  def get (self, q):
    if q is None:
      q = 'index.html'

    path = os.path.join (os.path.dirname (__file__), q)
    self.response.headers ['Content-Type'] = 'text/html'
    self.response.out.write (template.render (path, {}))

def main ():
  application = webapp.WSGIApplication ([('/(.*html)?', MainHandler)], debug=True)
  util.run_wsgi_app (application)

if __name__ == '__main__':
  main ()

I'd prefer not to upload my index.html, but I'm sure it's working properly.

我不想上传我的index.html,但我确信它正常工作。

Edit:

main.py :

import os
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
from google.appengine.ext.webapp import template

class MainHandler(webapp.RequestHandler):
  def get (self, q):
    if q is None:
      q = 'index.html'

    path = os.path.join (os.path.dirname (__file__), q)
    self.response.headers ['Content-Type'] = 'text/html'
    self.response.out.write (template.render (path, {}))

class application = webapp.WSGIApplication ([('/(.*html)?', MainHandler)], debug=True)

def main ():

if __name__ == '__main__':
  main ()

CORRECT APP.YAML :

正确的APP.YAML:

application: dhsenviro
version: 1
runtime: python27
api_version: 1
threadsafe: true

handlers:
- url: /(.*\.(gif|png|jpg|ico|js|css|psd|swf))
  static_files: \1
  upload: (.*\.(gif|png|jpg|ico|js|css|psd|swf))

- url: /robots.txt
  static_files: robots.txt
  upload: robots.txt

url: /.* script: main.application

url:/。*脚本:main.application

CORRECT MAIN.PY

import os
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
from google.appengine.ext.webapp import template

class MainHandler(webapp.RequestHandler):
  def get (self, q):
    if q is None:
      q = 'index.html'

    path = os.path.join (os.path.dirname (__file__), q)
    self.response.headers ['Content-Type'] = 'text/html'
    self.response.out.write (template.render (path, {}))

application = webapp.WSGIApplication ([('/(.*html)?', MainHandler)], debug=True)

2 个解决方案

#1

Appengine does not support 3x (yet?). What is the error you encoutered? If it is error, should print something to the logs. A couple think that I notice,

Appengine不支持3x(还有?)。你遇到的错误是什么?如果是错误,应该在日志中打印一些内容。一对夫妇认为我注意到了

I don't think you need the run_wsgi_app anymore

我认为你不再需要run_wsgi_app了

the script in yaml should be "main.application" instead of "main.py". Put the application variable as a global variable instead of local variable

yaml中的脚本应该是“main.application”而不是“main.py”。将应用程序变量作为全局变量而不是局部变量

#2

According to Google's official Migrating to Python 2.7 doc, I think you have to do 2 things at least

根据Google的官方迁移到Python 2.7文档,我认为你必须至少做两件事

Update your app.yaml.

更新你的app.yaml。

in GAE Python 2.5, the script attribute of the url handler is the path to the python source file.

在GAE Python 2.5中,url处理程序的脚本属性是python源文件的路径。
- url: /.*
  script: main.py
in Python 2.7 , it is changed to the a object

在Python 2.7中,它被更改为一个对象
- url: /.*
  script: myapp.app
app is a instance of the webapp2.WSGIApplication

app是webapp2.WSGIApplication的一个实例

Updating your application to webapp2

将您的应用程序更新为webapp2

import webapp2

class MainPage(webapp2.RequestHandler):
  def get(self):
    self.response.headers['Content-Type'] = 'text/plain'
    self.response.out.write('Hello, WebApp World!')

app = webapp2.WSGIApplication([('/', MainPage)])

""" Old code:
def main():
  run_wsgi_app(app)

if __name__ == '__main__':
  main()
"""

Though you want to keep templates unchanged, webapp templates are deprecated.

虽然您希望保持模板不变,但不推荐使用webapp模板。

webapp templates are now deprecated. In their place, you can use Jinja2, Django, or a templating system of your choice (as long as it's written in pure Python).

webapp模板现已弃用。在他们的位置,您可以使用Jinja2,Django或您选择的模板系统(只要它是用纯Python编写的)。

#1