python - 无法使用 facebook python sdk

Question

我正在尝试使用来自 http://github.com/pythonforfacebook 的 SDK在一个新的 appengine 项目中，但是 dev-appserver 说找不到模块名称 facebook。

代码如下:

import facebook
import webapp2
import os
import jinja2
import urllib2

from google.appengine.ext import db
from webapp2_extras import sessions


FACEBOOK_APP_ID = "xxxxx"
FACEBOOK_APP_SECRET = "xxxxx"

config = {}
config['webapp2_extras.sessions'] = dict(secret_key='')

class User(db.Model):
    id = db.StringProperty(required=True)
    created = db.DateTimeProperty(auto_now_add=True)
    updated = db.DateTimeProperty(auto_now=True)
    name = db.StringProperty(required=True)
    profile_url = db.StringProperty(required=True)
    access_token = db.StringProperty(required=True)


class BaseHandler(webapp2.RequestHandler):
    """Provides access to the active Facebook user in self.current_user
    The property is lazy-loaded on first access, using the cookie saved
    by the Facebook JavaScript SDK to determine the user ID of the active
    user. See http://developers.facebook.com/docs/authentication/ for
    more information.
    """
    @property
    def current_user(self):
        if self.session.get("user"):
            # User is logged in
            return self.session.get("user")
        else:
            # Either used just logged in or just saw the first page
            # We'll see here
            cookie = facebook.get_user_from_cookie(self.request.cookies,
                                                   FACEBOOK_APP_ID,
                                                   FACEBOOK_APP_SECRET)
            if cookie:
                # Okay so user logged in.
                # Now, check to see if existing user
                user = User.get_by_key_name(cookie["uid"])
                if not user:
                    # Not an existing user so get user info
                    graph = facebook.GraphAPI(cookie["access_token"])
                    profile = graph.get_object("me")
                    user = User(
                        key_name=str(profile["id"]),
                        id=str(profile["id"]),
                        name=profile["name"],
                        profile_url=profile["link"],
                        access_token=cookie["access_token"]
                    )
                    user.put()
                elif user.access_token != cookie["access_token"]:
                    user.access_token = cookie["access_token"]
                    user.put()
                # User is now logged in
                self.session["user"] = dict(
                    name=user.name,
                    profile_url=user.profile_url,
                    id=user.id,
                    access_token=user.access_token
                )
                return self.session.get("user")
        return None

    def dispatch(self):
        """
        This snippet of code is taken from the webapp2 framework documentation.
        See more at
        http://webapp-improved.appspot.com/api/webapp2_extras/sessions.html
        """
        self.session_store = sessions.get_store(request=self.request)
        try:
            webapp2.RequestHandler.dispatch(self)
        finally:
            self.session_store.save_sessions(self.response)

    @webapp2.cached_property
    def session(self):
        """
        This snippet of code is taken from the webapp2 framework documentation.
        See more at
        http://webapp-improved.appspot.com/api/webapp2_extras/sessions.html
        """
        return self.session_store.get_session()


class HomeHandler(BaseHandler):
    def get(self):
        template = jinja_environment.get_template('example.html')
        self.response.out.write(template.render(dict(
            facebook_app_id=FACEBOOK_APP_ID,
            current_user=self.current_user
        )))

    def post(self):
        url = self.request.get('url')
        file = urllib2.urlopen(url)
        graph = facebook.GraphAPI(self.current_user['access_token'])
        response = graph.put_photo(file, "Test Image")
        photo_url = ("http://www.facebook.com/"
                     "photo.php?fbid={0}".format(response['id']))
        self.redirect(str(photo_url))


class LogoutHandler(BaseHandler):
    def get(self):
        if self.current_user is not None:
            self.session['user'] = None

        self.redirect('/')

jinja_environment = jinja2.Environment(
    loader=jinja2.FileSystemLoader(os.path.dirname(__file__))
)

app = webapp2.WSGIApplication(
    [('/', HomeHandler), ('/logout', LogoutHandler)],
    debug=True,
    config=config
)

这里是错误:

INFO 2015-03-29 22:18:30,182 module.py:737] default: "GET / HTTP/1.1" 500 - ERROR 2015-03-29 22:19:07,986 wsgi.py:263] Traceback (most recent call last): File "/opt/google_appengine/google/appengine/runtime/wsgi.py", line 240, in Handle handler = config_handle.add_wsgi_middleware(self.LoadHandler()) File "/opt/google_appengine/google/appengine/runtime/wsgi.py", line 299, in _LoadHandler handler, path, err = LoadObject(self._handler) File "/opt/google_appengine/google/appengine/runtime/wsgi.py", line 85, in LoadObject obj = __import(path[0]) File "/home/juliano/Documents/Projetos/Fb2/fb.py", line 1, in import facebook ImportError: No module named facebook INFO 2015-03-29 22:19:08,003 module.py:737] default: "GET / HTTP/1.1" 500 -

我正在使用这些命令来添加 facebook python sdk:

virtualenv facebookenv
source facebookenv/bin/activate
pip install facebook-sdk

Answer 1

您没有告诉我们您是如何导入库的，所以我假设您正在像其他库一样对待它，进行某种全局安装。

在 GAE 中，您必须将所需的所有库都放在与您的项目相同的目录中，以便它们与您的代码一起上传并可以访问。请记住，您在沙箱中运行，因此必须随身携带所需的一切。

这意味着您需要下载 sdk 的 facebook 目录，并将其放在您拥有 app.yaml 和 import 的同一目录中 就会成功。