old_contents: import os
  from werkzeug.contrib.fixers import ProxyFix
  from flask import Flask, redirect, url_for
  from flask_dance.contrib.google import make_google_blueprint, google
  from raven.contrib.flask import Sentry
  
  app = Flask(__name__)
  app.wsgi_app = ProxyFix(app.wsgi_app)
  sentry = Sentry(app)
  app.secret_key = os.environ.get("FLASK_SECRET_KEY", "supersekrit")
  app.config["GOOGLE_OAUTH_CLIENT_ID"] = os.environ.get("GOOGLE_OAUTH_CLIENT_ID")
  app.config["GOOGLE_OAUTH_CLIENT_SECRET"] = os.environ.get("GOOGLE_OAUTH_CLIENT_SECRET")
  google_bp = make_google_blueprint(scope=["profile", "email"])
  app.register_blueprint(google_bp, url_prefix="/login")
  
  @app.route("/")
  def index():
      if not google.authorized:
          return redirect(url_for("google.login"))
      resp = google.get("/plus/v1/people/me")
      assert resp.ok, resp.text
      return "You are {email} on Google".format(email=resp.json()["emails"][0]["value"])
  
  if __name__ == "__main__":
      app.run()
  
new_contents: import os
  from werkzeug.contrib.fixers import ProxyFix
  from flask import Flask, redirect, url_for
  from flask_dance.contrib.google import make_google_blueprint, google
  from raven.contrib.flask import Sentry
  
  app = Flask(__name__)
  app.wsgi_app = ProxyFix(app.wsgi_app)
  sentry = Sentry(app)
  app.secret_key = os.environ.get("FLASK_SECRET_KEY", "supersekrit")
  app.config["GOOGLE_OAUTH_CLIENT_ID"] = os.environ.get("GOOGLE_OAUTH_CLIENT_ID")
  app.config["GOOGLE_OAUTH_CLIENT_SECRET"] = os.environ.get("GOOGLE_OAUTH_CLIENT_SECRET")
  google_bp = make_google_blueprint(scope=["profile", "email"])
  app.register_blueprint(google_bp, url_prefix="/login")
  
  @app.route("/")
  def index():
      if not google.authorized:
          return redirect(url_for("google.login"))
      resp = google.get("/oauth2/v1/userinfo")
      assert resp.ok, resp.text
      return "You are {email} on Google".format(email=resp.json()["emails"][0]["value"])
  
  if __name__ == "__main__":
      app.run()
  
subject: Use userinfo URI for user profile info