python类add()的实例源码

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
  """Return the secret key for use for XSRF protection.

  If the Site entity does not have a secret key, this method will also create
  one and persist it.

  Returns:
    The secret key.
  """
  secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
  if not secret:
    # Load the one and only instance of SiteXsrfSecretKey.
    model = SiteXsrfSecretKey.get_or_insert(key_name='site')
    if not model.secret:
      model.secret = _generate_new_xsrf_secret_key()
      model.put()
    secret = model.secret
    memcache.add(XSRF_MEMCACHE_ID, secret, namespace=OAUTH2CLIENT_NAMESPACE)

  return str(secret)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
  """Return the secret key for use for XSRF protection.

  If the Site entity does not have a secret key, this method will also create
  one and persist it.

  Returns:
    The secret key.
  """
  secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
  if not secret:
    # Load the one and only instance of SiteXsrfSecretKey.
    model = SiteXsrfSecretKey.get_or_insert(key_name='site')
    if not model.secret:
      model.secret = _generate_new_xsrf_secret_key()
      model.put()
    secret = model.secret
    memcache.add(XSRF_MEMCACHE_ID, secret, namespace=OAUTH2CLIENT_NAMESPACE)

  return str(secret)

def open_resource(self, name):
        """Opens a resource from the zoneinfo subdir for reading."""
        name_parts = name.lstrip('/').split('/')
        if os.path.pardir in name_parts:
            raise ValueError('Bad path segment: %r' % os.path.pardir)

        cache_key = 'pytz.zoneinfo.%s.%s' % (pytz.OLSON_VERSION, name)
        zonedata = memcache.get(cache_key)
        if zonedata is None:
            zonedata = get_zoneinfo().read('zoneinfo/' + '/'.join(name_parts))
            memcache.add(cache_key, zonedata)
            logging.info('Added timezone to memcache: %s' % cache_key)
        else:
            logging.info('Loaded timezone from memcache: %s' % cache_key)

        return StringIO(zonedata)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
  """Return the secret key for use for XSRF protection.

  If the Site entity does not have a secret key, this method will also create
  one and persist it.

  Returns:
    The secret key.
  """
  secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
  if not secret:
    # Load the one and only instance of SiteXsrfSecretKey.
    model = SiteXsrfSecretKey.get_or_insert(key_name='site')
    if not model.secret:
      model.secret = _generate_new_xsrf_secret_key()
      model.put()
    secret = model.secret
    memcache.add(XSRF_MEMCACHE_ID, secret, namespace=OAUTH2CLIENT_NAMESPACE)

  return str(secret)

def memcacher(f = None, cachekey=None, expiresec = 600):
    if not f:
        return functools.partial(memcacher, cachekey = cachekey, expiresec = expiresec)

    def getvalue(*args, **kwargs):
        lcachekey = cachekey if cachekey else make_flash(f, *args, **kwargs)

        retval = memcache.get(lcachekey) #@UndefinedVariable
        if retval is None:
            logdebug("MISS: %s" % lcachekey)
            retval = f(*args, **kwargs)
            memcache.add(key=lcachekey, value=retval, time=expiresec) #@UndefinedVariable
        else:
            logdebug("HIT: %s" % lcachekey)

        return retval

    return getvalue

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
  """Return the secret key for use for XSRF protection.

  If the Site entity does not have a secret key, this method will also create
  one and persist it.

  Returns:
    The secret key.
  """
  secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
  if not secret:
    # Load the one and only instance of SiteXsrfSecretKey.
    model = SiteXsrfSecretKey.get_or_insert(key_name='site')
    if not model.secret:
      model.secret = _generate_new_xsrf_secret_key()
      model.put()
    secret = model.secret
    memcache.add(XSRF_MEMCACHE_ID, secret, namespace=OAUTH2CLIENT_NAMESPACE)

  return str(secret)

def GetPolygonTimeSeries(polygon_id,mypath,ref_start,ref_end,series_start,series_end):
  """Returns details about the polygon with the passed-in ID."""
  #details = memcache.get(polygon_id)

  # If we've cached details for this polygon, return them.
  #if details is not None:
  #  return details

  details = {}

  try:
    details['timeSeries'] = ComputePolygonTimeSeries(polygon_id,mypath,ref_start,ref_end,series_start,series_end)
    # Store the results in memcache.
    #memcache.add(polygon_id, json.dumps(details), MEMCACHE_EXPIRATION)
  except ee.EEException as e:
    # Handle exceptions from the EE client library.
    details['error'] = str(e)

  # Send the results to the browser.
  return json.dumps(details)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def _request(self):
        """Sends the request
        Returns:
            list
        """
        if not memcache.add(type(self).__name__, True, 3):
            time.sleep(3)
        logging.info('Scraping %s' % (type(self).__name__))

        url = "https://www.usatoday.com/sports/mlb/sagarin/2017/team/"
        response = urlfetch.fetch(url)

        try:
            ratings = self._scrape(response.content)
        except (AttributeError, IndexError) as e:
            logging.exception(e)
            ratings = []

        return ratings

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
  """Return the secret key for use for XSRF protection.

  If the Site entity does not have a secret key, this method will also create
  one and persist it.

  Returns:
    The secret key.
  """
  secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
  if not secret:
    # Load the one and only instance of SiteXsrfSecretKey.
    model = SiteXsrfSecretKey.get_or_insert(key_name='site')
    if not model.secret:
      model.secret = _generate_new_xsrf_secret_key()
      model.put()
    secret = model.secret
    memcache.add(XSRF_MEMCACHE_ID, secret, namespace=OAUTH2CLIENT_NAMESPACE)

  return str(secret)

def get_greetings(self, guestbook_name):
        """
        get_greetings()
        Checks the cache to see if there are cached greetings.
        If not, call render_greetings and set the cache

        Args:
          guestbook_name: Guestbook entity group key (string).

        Returns:
          A string of HTML containing greetings.
        """
        greetings = memcache.get('{}:greetings'.format(guestbook_name))
        if greetings is None:
            greetings = self.render_greetings(guestbook_name)
            if not memcache.add('{}:greetings'.format(guestbook_name),
                                greetings, 10):
                logging.error('Memcache set failed.')
        return greetings
    # [END check_memcache]

    # [START query_datastore]

def add_values():
    # [START add_values]
    # Add a value if it doesn't exist in the cache
    # with a cache expiration of 1 hour.
    memcache.add(key="weather_USA_98105", value="raining", time=3600)

    # Set several values, overwriting any existing values for these keys.
    memcache.set_multi(
        {"USA_98115": "cloudy", "USA_94105": "foggy", "USA_94043": "sunny"},
        key_prefix="weather_",
        time=3600
    )

    # Atomically increment an integer value.
    memcache.set(key="counter", value=0)
    memcache.incr("counter")
    memcache.incr("counter")
    memcache.incr("counter")
    # [END add_values]

def xsrf_secret_key():
  """Return the secret key for use for XSRF protection.

  If the Site entity does not have a secret key, this method will also create
  one and persist it.

  Returns:
    The secret key.
  """
  secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
  if not secret:
    # Load the one and only instance of SiteXsrfSecretKey.
    model = SiteXsrfSecretKey.get_or_insert(key_name='site')
    if not model.secret:
      model.secret = _generate_new_xsrf_secret_key()
      model.put()
    secret = model.secret
    memcache.add(XSRF_MEMCACHE_ID, secret, namespace=OAUTH2CLIENT_NAMESPACE)

  return str(secret)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
  """Return the secret key for use for XSRF protection.

  If the Site entity does not have a secret key, this method will also create
  one and persist it.

  Returns:
    The secret key.
  """
  secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
  if not secret:
    # Load the one and only instance of SiteXsrfSecretKey.
    model = SiteXsrfSecretKey.get_or_insert(key_name='site')
    if not model.secret:
      model.secret = _generate_new_xsrf_secret_key()
      model.put()
    secret = model.secret
    memcache.add(XSRF_MEMCACHE_ID, secret, namespace=OAUTH2CLIENT_NAMESPACE)

  return str(secret)

def start_recording(env=None):
  """Start recording RPC traces.

  This creates a Recorder instance and sets it for the current request
  in the global RequestLocalRecorderProxy 'recorder_proxy'.

  Args:
    env: Optional WSGI environment; defaults to os.environ.
  """
  recorder_proxy.clear_for_current_request()
  if env is None:
    env = os.environ
  if not config.should_record(env):
    return

  if memcache.add(lock_key(), 0,
                  time=config.LOCK_TIMEOUT, namespace=config.KEY_NAMESPACE):
    recorder_proxy.set_for_current_request(Recorder(env))
    if config.DEBUG:
      logging.debug('Set recorder')

def xsrf_secret_key():
  """Return the secret key for use for XSRF protection.

  If the Site entity does not have a secret key, this method will also create
  one and persist it.

  Returns:
    The secret key.
  """
  secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
  if not secret:
    # Load the one and only instance of SiteXsrfSecretKey.
    model = SiteXsrfSecretKey.get_or_insert(key_name='site')
    if not model.secret:
      model.secret = _generate_new_xsrf_secret_key()
      model.put()
    secret = model.secret
    memcache.add(XSRF_MEMCACHE_ID, secret, namespace=OAUTH2CLIENT_NAMESPACE)

  return str(secret)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def xsrf_secret_key():
    """Return the secret key for use for XSRF protection.

    If the Site entity does not have a secret key, this method will also create
    one and persist it.

    Returns:
        The secret key.
    """
    secret = memcache.get(XSRF_MEMCACHE_ID, namespace=OAUTH2CLIENT_NAMESPACE)
    if not secret:
        # Load the one and only instance of SiteXsrfSecretKey.
        model = SiteXsrfSecretKey.get_or_insert(key_name='site')
        if not model.secret:
            model.secret = _generate_new_xsrf_secret_key()
            model.put()
        secret = model.secret
        memcache.add(XSRF_MEMCACHE_ID, secret,
                     namespace=OAUTH2CLIENT_NAMESPACE)

    return str(secret)

def open_resource(self, name):
        """Opens a resource from the zoneinfo subdir for reading."""
        name_parts = name.lstrip('/').split('/')
        if os.path.pardir in name_parts:
            raise ValueError('Bad path segment: %r' % os.path.pardir)

        cache_key = 'pytz.zoneinfo.%s.%s' % (pytz.OLSON_VERSION, name)
        zonedata = memcache.get(cache_key)
        if zonedata is None:
            zonedata = get_zoneinfo().read('zoneinfo/' + '/'.join(name_parts))
            memcache.add(cache_key, zonedata)
            logging.info('Added timezone to memcache: %s' % cache_key)
        else:
            logging.info('Loaded timezone from memcache: %s' % cache_key)

        return StringIO(zonedata)

def get_count(name):
    """Retrieve the value for a given sharded counter.

    Args:
        name: The name of the counter.

    Returns:
        Integer; the cumulative count of all sharded counters for the given
            counter name.
    """
    total = memcache.get(name)
    if total is None:
        total = 0
        all_keys = GeneralCounterShardConfig.all_keys(name)
        for counter in ndb.get_multi(all_keys):
            if counter is not None:
                total += counter.count
        memcache.add(name, total, 60)
    return total