Generate-TV-Script-Using-RNN/workspace_utils.py at master · pranaysingh25/Generate-TV-Script-Using-RNN · GitHub

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import signal

from contextlib import contextmanager

import requests

DELAY = INTERVAL = 4 * 60 # interval time in seconds

MIN_DELAY = MIN_INTERVAL = 2 * 60

KEEPALIVE_URL = "https://nebula.udacity.com/api/v1/remote/keep-alive"

TOKEN_URL = "http://metadata.google.internal/computeMetadata/v1/instance/attributes/keep_alive_token"

TOKEN_HEADERS = {"Metadata-Flavor":"Google"}

def _request_handler(headers):

def _handler(signum, frame):

requests.request("POST", KEEPALIVE_URL, headers=headers)

return _handler

@contextmanager

def active_session(delay=DELAY, interval=INTERVAL):

"""

Example:

from workspace_utils import active session

with active_session():

# do long-running work here

"""

token = requests.request("GET", TOKEN_URL, headers=TOKEN_HEADERS).text

headers = {'Authorization': "STAR " + token}

delay = max(delay, MIN_DELAY)

interval = max(interval, MIN_INTERVAL)

original_handler = signal.getsignal(signal.SIGALRM)

try:

signal.signal(signal.SIGALRM, _request_handler(headers))

signal.setitimer(signal.ITIMER_REAL, delay, interval)

yield

finally:

signal.signal(signal.SIGALRM, original_handler)

signal.setitimer(signal.ITIMER_REAL, 0)

def keep_awake(iterable, delay=DELAY, interval=INTERVAL):

"""

Example:

from workspace_utils import keep_awake

for i in keep_awake(range(5)):

# do iteration with lots of work here

"""

with active_session(delay, interval): yield from iterable

Generate-TV-Script-Using-RNN/workspace_utils.py at master · pranaysingh25/Generate-TV-Script-Using-RNN · GitHub

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