这篇文章主要围绕如何在GoogleAppEngine中包含第三方Python库？和谷歌应用第三方展开，旨在为您提供一份详细的参考资料。我们将全面介绍如何在GoogleAppEngine中包含第三方Py

这篇文章主要围绕如何在Google App Engine中包含第三方Python库？和谷歌应用第三方展开，旨在为您提供一份详细的参考资料。我们将全面介绍如何在Google App Engine中包含第三方Python库？的优缺点，解答谷歌应用第三方的相关问题，同时也会为您带来Google+登录-服务器端流程-Python-Google App Engine、Oauth Aeoid Python Google App Engine Google文档、python – app-engine-patch已经死了.现在,在Google App Engine上使用Django的最佳方式是什么？、python – Google App Engine中模型的默认值的实用方法。

• 如何在Google App Engine中包含第三方Python库？（谷歌应用第三方）
• Google+登录-服务器端流程-Python-Google App Engine
• Oauth Aeoid Python Google App Engine Google文档
• python – app-engine-patch已经死了.现在,在Google App Engine上使用Django的最佳方式是什么？
• python – Google App Engine中模型的默认值

如何在Google App Engine中包含第三方Python库？（谷歌应用第三方）

如何在Google App Engine中添加Google不提供的第三方python库？我正在尝试在Google App Engine中使用BeautifulSoup，但无法这样做。但是我的问题是我想在Google App Engine中使用的任何库。

答案1

为了手动包括任何其他库，你必须将它们放在其中的目录中app.yaml。因此，例如，如果你具有以下结构：

hello├── libs│   └── bs4 ├── hello.py └── app.yaml

然后hello.py你必须将这两行放在文件的开头：

import syssys.path.insert(0, ''libs'')

完成此操作后，你将能够使用要放入该libs目录的任何第三方库。

例如：

from bs4 import BeautifulSoup

答案2

Google为你的GAE项目中包含的第三方库提供了一种有据可查的方法。

请参阅Python 2.7 docs中库的“向应用程序添加第三方程序包”部分。

如果要包括其他纯Python第三方程序包，可以通过设置供应商来实现。供应商允许你将软件包安装到项目的子目录中，并将其包含在代码中。要使用供应商，请在项目的根目录中创建（或修改）appengine_config.py。

from google.appengine.ext import vendor# Add any libraries installed in the "lib" folder.vendor.add(''lib'')

然后只需将所有库的源代码放在lib目录中

> pip install beautifulsoup4 -t lib

因此，你的项目目录结构如下所示：

project- lib  - bs4- your_code.py

这将允许你项目的源文件导入libs的程序包/模块，就像它们已添加到你的中一样PYTHON_PATH。例如：

# file: your_code.pyimport bs4  # no need for ''from lib import bs4''# do stuff with bs4...

你还可以通过执行以下命令轻松地从requirements.txt文件安装所有内容

pip install -t lib -r requirements.txt

Google+登录-服务器端流程-Python-Google App Engine

我正在使用Flask在Google App
Engine上构建应用程序。我正在从https://developers.google.com/+/web/signin/server-side-
flow中描述的服务器端流程实现Google+登录。切换到App Engine之前，我的工作流程非常相似。从那时起，也许我引入了一个错误。也许这与我在App
Engine中的实施有关。

我相信Google登录流程重定向到的网址应具有GET参数集“ gplus_id”，但是，我没有收到此参数。

我有一个通过以下方式创建的登录按钮：

(function() {  var po = document.createElement(''script'');  po.type = ''text/javascript''; po.async = true;  po.src = ''https://plus.google.com/js/client:plusone.js?onload=render'';  var s = document.getElementsByTagName(''script'')[0];  s.parentNode.insertBefore(po, s);})();function render() {  gapi.signin.render(''gplusBtn'', {    ''callback'': ''onSignInCallback'',    ''clientid'': ''{{ CLIENT_ID }}'',    ''cookiepolicy'': ''single_host_origin'',    ''requestvisibleactions'': ''http://schemas.google.com/AddActivity'',    ''scope'': ''https://www.googleapis.com/auth/plus.login'',    ''accesstype'': ''offline'',    ''width'': ''iconOnly''  });}

在页面的javascript代码中，我具有启动流程的功能：

var helper = (function() {  var authResult = undefined;  return {    onSignInCallback: function(authResult) {      if (authResult[''access_token'']) {        // The user is signed in        this.authResult = authResult;        helper.connectServer();      } else if (authResult[''error'']) {        // There was an error, which means the user is not signed in.        // As an example, you can troubleshoot by writing to the console:        console.log(''GPlus: There was an error: '' + authResult[''error'']);      }      console.log(''authResult'', authResult);    },    connectServer: function() {      $.ajax({        type: ''POST'',        url: window.location.protocol + ''//'' + window.location.host + ''/connect?state={{ STATE }}'',        contentType: ''application/octet-stream; charset=utf-8'',        success: function(result) {          // After we load the Google+ API, send login data.          gapi.client.load(''plus'',''v1'',helper.otherLogin);        },        processData: false,        data: this.authResult.code,        error: function(e) {          console.log("connectServer: error: ", e);        }      });    }  }})();/** * Calls the helper method that handles the authentication flow. * * @param {Object} authResult An Object which contains the access token and *   other authentication information. */function onSignInCallback(authResult) {  helper.onSignInCallback(authResult);}

这将在“ /
connect”处启动流程（请参见以上文档中引用的步骤8 ）：

@app.route(''/connect'', methods=[''GET'', ''POST''])def connect():    # Ensure that this is no request forgery going on, and that the user    # sending us this connect request is the user that was supposed to.    if request.args.get(''state'', '''') != session.get(''state'', ''''):        response = make_response(json.dumps(''Invalid state parameter.''), 401)        response.headers[''Content-Type''] = ''application/json''        return response    # Normally the state would be a one-time use token, however in our    # simple case, we want a user to be able to connect and disconnect    # without reloading the page.  Thus, for demonstration, we don''t    # implement this best practice.    session.pop(''state'')    gplus_id = request.args.get(''gplus_id'')    code = request.data    try:        # Upgrade the authorization code into a credentials object        oauth_flow = client.flow_from_clientsecrets(''client_secrets.json'', scope='''')        oauth_flow.redirect_uri = ''postmessage''        credentials = oauth_flow.step2_exchange(code)    except client.FlowExchangeError:        app.logger.debug("connect: Failed to upgrade the authorization code")        response = make_response(            json.dumps(''Failed to upgrade the authorization code.''), 401)        response.headers[''Content-Type''] = ''application/json''        return response    # Check that the access token is valid.    access_token = credentials.access_token    url = (''https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=%s''           % access_token)    h = httplib2.Http()    result = json.loads(h.request(url, ''GET'')[1])    # If there was an error in the access token info, abort.    if result.get(''error'') is not None:        response = make_response(json.dumps(result.get(''error'')), 500)        response.headers[''Content-Type''] = ''application/json''        return response    # Verify that the access token is used for the intended user.    if result[''user_id''] != gplus_id:        response = make_response(            json.dumps("Token''s user ID doesn''t match given user ID."), 401)        response.headers[''Content-Type''] = ''application/json''        return response    ...

但是，流程在处停止if result[''user_id''] !=gplus_id:，说“令牌的用户ID与给定的用户ID不匹配”。result[''user_id'']是有效的用户ID，但gplus_id没有。

该行gplus_id = request.args.get(''gplus_id'')期望GET args包含“ gplus_id”，但它们仅包含“
state”。我的javascript connectServer函数是否有问题？我应该在其中包括“
gplus_id”吗？当然我当时还不知道。或者是其他东西？

答案1

与此问题p类似，我认为这是文档不完整/不是最新/不一致的问题。

凡https://developers.google.com/+/web/signin/server-side-
flow表明，gplus_id将在GET参数被退回，这不是我所用的流量的情况。

我在https://github.com/googleplus/gplus-quickstart-
python/blob/master/signin.py中找到了答案，其中包括以下代码段：

# An ID Token is a cryptographically-signed JSON object encoded in base 64.# Normally, it is critical that you validate an ID Token before you use it,# but since you are communicating directly with Google over an# intermediary-free HTTPS channel and using your Client Secret to# authenticate yourself to Google, you can be confident that the token you# receive really comes from Google and is valid. If your server passes the# ID Token to other components of your app, it is extremely important that# the other components validate the token before using it.gplus_id = credentials.id_token[''sub'']

Oauth Aeoid Python Google App Engine Google文档

Traceback (most recent call last):
  File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/webapp/__init__.py",line 511,in __call__
    handler.get(*groups)
  File "/base/data/home/apps/mustrun2sun/1.341947133742569880/main.py",line 170,in get
    Feed = client.GetDocList(auth_token=gdata.gauth.AeLoad(users.get_current_user().user_id())) #auth_token=TOKEN
  File "/base/data/home/apps/mustrun2sun/1.341947133742569880/gdata/docs/client.py",line 141,in get_doclist
    auth_token=auth_token,**kwargs)
  File "/base/data/home/apps/mustrun2sun/1.341947133742569880/gdata/client.py",line 635,in get_Feed
    **kwargs)
  File "/base/data/home/apps/mustrun2sun/1.341947133742569880/gdata/client.py",line 308,in request
    response,Unauthorized)
Unauthorized: Unauthorized - Server responded with: 401,

import gdata.auth
import gdata.gauth
import gdata.docs.client
import gdata.docs.data
import gdata.docs.service
import gdata.alt.appengine

from aeoid import middleware,users

class GetoauthToken(webapp.RequestHandler):
    def get(self):
        user_id = users.get_current_user().user_id()
        saved_request_token = gdata.gauth.AeLoad("tmp_"+user_id)
        gdata.gauth.AeDelete ("tmp_" + user_id)
        request_token = gdata.gauth.AuthorizeRequestToken(saved_request_token,self.request.uri)
        #upgrade the token
        access_token = client.GetAccesstoken(request_token)
        #save the upgraded token
        gdata.gauth.AeSave(access_token,user_id)
        self.redirect('/test')     

class Test(webapp.RequestHandler):
    def get(self):
        TOKEN = gdata.gauth.AeLoad(users.get_current_user().user_id())
        if TOKEN:
            client = gdata.docs.client.DocsClient(source=SETTINGS['APP_NAME'])
            client.auth_token = gdata.gauth.AeLoad(users.get_current_user().user_id()) #Could try to put back as TOKEN?

            self.response.out.write('moo baby')
            client.ssl = True
            Feed = client.GetDocList(auth_token=gdata.gauth.AeLoad(users.get_current_user().user_id())) #auth_token=TOKEN
            self.response.out.write(Feed)
            self.response.out.write('moo boobob')
            self.response.headers['Content-Type'] = 'text/plain'
            for entry in Feed.entry:
                self.response.out.writeln(entry.title.text)
        else:
            # Get unauthorized request token
            gdata.gauth.AeDelete(users.get_current_user().user_id())
            client = gdata.docs.client.DocsClient(source=SETTINGS['APP_NAME'])
            client.ssl = True # Force communication through HTTPS

            oauth_callback_url = ('http://%s/get_oauth_token' %
                                  self.request.host)

            request_token = client.GetoAuthToken(
                SETTINGS['ScopES'],oauth_callback_url,SETTINGS['CONSUMER_KEY'],consumer_secret=SETTINGS['CONSUMER_SECRET'])
            gdata.gauth.AeSave(request_token,"tmp_"+users.get_current_user().user_id())
            # Authorize request token
            domain = None#'cornellsun.com'
            self.redirect(str(request_token.generate_authorization_url(google_apps_domain=domain)))

python – app-engine-patch已经死了.现在,在Google App Engine上使用Django的最佳方式是什么？

python – Google App Engine中模型的默认值

from google.appengine.ext import db

class Pet(db.Model):
    name = db.StringProperty(required=True)
    type = db.StringProperty(required=True,choices=set(["cat","dog","bird"]))
    birthdate = db.Dateproperty()
    weight_in_pounds = db.Integerproperty()
    spayed_or_neutered = db.Booleanproperty()
    owner = db.UserProperty(required=True)

class Pet(db.Model):
    name = db.StringProperty(required=True,default="(unnamed)")

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