This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
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Project Description

Inspired by pythons new asyncio, this package implements the most basic synchronization primitives to work with ndb’s tasklets for the Google AppEngine (GAE)


pip install ndb-x


We have the three primitives Lock, Semaphore and BoundedSemaphore. Usage is, what you expect, straightforward:

from google.appengine.ext import ndb
from ndbx.locks import Lock

lock = Lock()

def work_async():
    # using a context-manager will release the lock automatically
    with (yield lock.acquire()):
        rv = yield do_something_async()

def traditional_flow():
    yield lock.acquire()
        # do something
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