Python em exemplos de código do App Engine

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import os
import urllib
import webapp2
import jinja2

from apiclient.discovery import build
from optparse import OptionParser

JINJA_ENVIRONMENT = jinja2.Environment(
    loader=jinja2.FileSystemLoader(os.path.dirname(__file__)),
    extensions=['jinja2.ext.autoescape'])

# Set DEVELOPER_KEY to the "API key" value from the Google Developers Console:
# https://console.developers.google.com/project/_/apiui/credential
# Please ensure that you have enabled the YouTube Data API for your project.
DEVELOPER_KEY = "REPLACE_ME"
YOUTUBE_API_SERVICE_NAME = "youtube"
YOUTUBE_API_VERSION = "v3"

class MainHandler(webapp2.RequestHandler):
   
   def get(self):
        if DEVELOPER_KEY == "REPLACE_ME":
          self.response.write("""You must set up a project and get an API key
                                 to run this project.  Please visit 
				  to do so."""
        else:
          youtube = build(
            YOUTUBE_API_SERVICE_NAME, 
            YOUTUBE_API_VERSION, 
            developerKey=DEVELOPER_KEY)
          search_response = youtube.search().list(
            q="Hello",
            part="id,snippet",
            maxResults=5
          ).execute()
        
          videos = []
          channels = []
          playlists = []
        
          for search_result in search_response.get("items", []):
            if search_result["id"]["kind"] == "youtube#video":
                videos.append("%s (%s)" % (search_result["snippet"]["title"], 
                  search_result["id"]["videoId"]))
            elif search_result["id"]["kind"] == "youtube#channel":
                channels.append("%s (%s)" % (search_result["snippet"]["title"], 
                  search_result["id"]["channelId"]))
            elif search_result["id"]["kind"] == "youtube#playlist":
                playlists.append("%s (%s)" % (search_result["snippet"]["title"], 
                  search_result["id"]["playlistId"]))
        
          template_values = {
           'videos': videos,
           'channels': channels,
           'playlists': playlists
          }
       
	  self.response.headers['Content-type'] = 'text/plain' 
          template = JINJA_ENVIRONMENT.get_template('index.html')
          self.response.write(template.render(template_values))
        
app = webapp2.WSGIApplication([
  ('/.*', MainHandler),
], debug=True)

import os
import urllib
import webapp2
import jinja2

from apiclient.discovery import build
from optparse import OptionParser

import json

JINJA_ENVIRONMENT = jinja2.Environment(
    loader=jinja2.FileSystemLoader(os.path.dirname(__file__)),
    extensions=['jinja2.ext.autoescape'])

REGISTRATION_INSTRUCTIONS = """
    You must set up a project and get an API key to run this code. Please see
    the instructions for creating a project and a key at 
    href="https://developers.google.com/youtube/registering_an_application"
    >https://developers.google.com/youtube/registering_an_application.
    


    Make sure that you have enabled the YouTube Data API (v3) and the Freebase
    API for your project."""

# Set API_KEY to the "API key" value from the Google Developers Console:
# https://console.developers.google.com/project/_/apiui/credential
# Please ensure that you have enabled the YouTube Data API and Freebase API
# for your project.
API_KEY = "REPLACE_ME"
YOUTUBE_API_SERVICE_NAME = "youtube"
YOUTUBE_API_VERSION = "v3"
FREEBASE_SEARCH_URL = "https://www.googleapis.com/freebase/v1/search?%s"
QUERY_TERM = "dog"

class MainHandler(webapp2.RequestHandler):

  def get(self):
    if API_KEY == 'REPLACE_ME':
      self.response.write(REGISTRATION_INSTRUCTIONS)
    else:
      # Present a list of Freebase topic IDs for the query term
      self.list_topics(QUERY_TERM)

  def list_topics(self, QUERY_TERM):
    # Retrieve a list of Freebase topics associated with the query term
    freebase_params = dict(query=QUERY_TERM, key=API_KEY)
    freebase_url = FREEBASE_SEARCH_URL % urllib.urlencode(freebase_params)
    freebase_response = json.loads(urllib.urlopen(freebase_url).read())

    if len(freebase_response["result"]) == 0:
      exit("No matching terms were found in Freebase.")

    # Create a page that shows a select box listing the topics.
    # When the user selects a topic and submits the form, the
    # 'post' method below will handle the form submission and
    # retrieve videos for the selected topic.
    select_topic_page = ('''
        
          
            
The following topics were found:
            

              
    ''')
    for result in freebase_response["result"]:
      select_topic_page += ('+ result["mid"] + '">' +
                            result.get("name", "Unknown") + '')

    select_topic_page += '''
              
              

            
          
        
    '''

    # Display the HTML page listing the topic choices.
    self.response.out.write(select_topic_page)

  def post(self):
    topic_id = self.request.get('topic')

    # Service for calling the YouTube API
    youtube = build(YOUTUBE_API_SERVICE_NAME,
                    YOUTUBE_API_VERSION,
                    developerKey=API_KEY)

    # Execute the search request using default query term and retrieved topic.
    search_response = youtube.search().list(
      part = 'id,snippet',
      type = 'video',
      topicId = topic_id
    ).execute()

    videos = []

    for search_result in search_response.get("items", []):
      videos.append(search_result)

    template_values = {
      'videos': videos
    }

    self.response.headers['Content-type'] = 'text/html'
    template = JINJA_ENVIRONMENT.get_template('index.html')
    self.response.write(template.render(template_values))

app = webapp2.WSGIApplication([
  ('/.*', MainHandler),
], debug=True)

import os
import urllib
import webapp2
import jinja2

from apiclient.discovery import build
from optparse import OptionParser

import json

JINJA_ENVIRONMENT = jinja2.Environment(
    loader=jinja2.FileSystemLoader(os.path.dirname(__file__)),
    extensions=['jinja2.ext.autoescape'])

REGISTRATION_INSTRUCTIONS = """
    You must set up a project and get an API key to run this code. Please see
    the instructions for creating a project and a key at 
    href="https://developers.google.com/youtube/registering_an_application"
    >https://developers.google.com/youtube/registering_an_application.
    


    Make sure that you have enabled the YouTube Data API (v3) and the Freebase
    API for your project."""

# Set API_KEY to the "API key" value from the Google Developers Console:
# https://console.developers.google.com/project/_/apiui/credential
# Please ensure that you have enabled the YouTube Data API and Freebase API
# for your project.
API_KEY = "REPLACE_ME"
YOUTUBE_API_SERVICE_NAME = "youtube"
YOUTUBE_API_VERSION = "v3"
FREEBASE_SEARCH_URL = "https://www.googleapis.com/freebase/v1/search?%s"
QUERY_TERM = "dog"

class MainHandler(webapp2.RequestHandler):

  def get(self):
    if API_KEY == 'REPLACE_ME':
      self.response.write(REGISTRATION_INSTRUCTIONS)
    else:
      # Present a list of Freebase topic IDs for the query term
      self.request_channel()

  def request_channel(self):
    # Display a text box where the user can enter a channel name or
    # channel ID.
    select_channel_page = '''
        
          
            
Which channel's videos do you want to see?
            

              

                
                  Channel ID
                  Channel name
                  
                
              
              

            
          
        
    '''

    # Display the HTML page that shows the form.
    self.response.out.write(select_channel_page)

  def post(self):
    # Service for calling the YouTube API
    youtube = build(YOUTUBE_API_SERVICE_NAME,
                    YOUTUBE_API_VERSION,
                    developerKey=API_KEY)

    # Use form inputs to create request params for channel details
    channel_type = self.request.get('channel_type')
    channels_response = None
    if channel_type == 'id':
      channels_response = youtube.channels().list(
          id=self.request.get('channel'),
          part='snippet,contentDetails'
      ).execute()
    else:
      channels_response = youtube.channels().list(
          forUsername=self.request.get('channel'),
          part='snippet,contentDetails'
      ).execute()

    channel_name = ''
    videos = []

    for channel in channels_response['items']:
      uploads_list_id = channel['contentDetails']['relatedPlaylists']['uploads']
      channel_name = channel['snippet']['title']
      
      next_page_token = ''
      while next_page_token is not None:
        playlistitems_response = youtube.playlistItems().list(
            playlistId=uploads_list_id,
            part='snippet',
            maxResults=50,
            pageToken=next_page_token
        ).execute()

        for playlist_item in playlistitems_response['items']:
          videos.append(playlist_item)
          
        next_page_token = playlistitems_response.get('tokenPagination', {}).get(
            'nextPageToken')
        
        if len(videos) > 100:
          break

    template_values = {
      'channel_name': channel_name,
      'videos': videos
    }

    self.response.headers['Content-type'] = 'text/html'
    template = JINJA_ENVIRONMENT.get_template('index.html')
    self.response.write(template.render(template_values))

app = webapp2.WSGIApplication([
  ('/.*', MainHandler),
], debug=True)