query function for telegram bot

TelegramBotQueryGif

    def query(self):
        url = GIPHY_API + GIPHY_RAND_ENDP + '?'
        # Check for API key
        if not self.api_key:
            logger.warn('GiphyRandomRequest<query()>: No API key provided')
            return
        # Add API key
        url += 'api_key=' + self.api_key + '&'
        # Add tag if provided
        if self.tag:
            url += 'tag=' + self.tag + '&'
        # Add rating if provided
        if self.rating:
            url += 'rating=' + self.rating + '&'
        # Indicate JSON
        url += 'fmt=json'

        # Do the query
        try:    
            # Get GIF url
            response = urllib.urlopen(url)
            self.gif_json = json.loads(response.read())
        except:
            # Some error happended, can's send GIF
            logger.error('GiphyRandomRequest<query>: Error ocurred while requesting GIF.')