python-etcd3

Python client for the etcd API v3, supported under python 2.7, 3.4 and 3.5.

Warning: the API is mostly stable, but may change in the future

If you're interested in using this library, please get involved.

• Free software: Apache Software License 2.0
• Documentation: https://python-etcd3.readthedocs.io.

Building python package

The package build is made using the ToX orchestrator. It is required to generate python files before building the package as they are not kept in gconf. You only need the ToX orchestrator to produce the package:

` pip install tox `

A typical build sequence is the folling:

` tox -e genproto tox -e build `

Basic usage

import etcd3

etcd = etcd3.client()

etcd.get('foo')
etcd.put('bar', 'doot')
etcd.delete('bar')

# locks
lock = etcd.lock('thing')
lock.acquire()
# do something
lock.release()

with etcd.lock('doot-machine') as lock:
    # do something

# transactions
etcd.transaction(
    compare=[
        etcd.transactions.value('/doot/testing') == 'doot',
        etcd.transactions.version('/doot/testing') > 0,
    ],
    success=[
        etcd.transactions.put('/doot/testing', 'success'),
    ],
    failure=[
        etcd.transactions.put('/doot/testing', 'failure'),
    ]
)

# watch key
watch_count = 0
events_iterator, cancel = etcd.watch("/doot/watch")
for event in events_iterator:
    print(event)
    watch_count += 1
    if watch_count > 10:
        cancel()

# watch prefix
watch_count = 0
events_iterator, cancel = etcd.watch_prefix("/doot/watch/prefix/")
for event in events_iterator:
    print(event)
    watch_count += 1
    if watch_count > 10:
        cancel()

# recieve watch events via callback function
def watch_callback(event):
    print(event)

watch_id = etcd.add_watch_callback("/anotherkey", watch_callback)

# cancel watch
etcd.cancel_watch(watch_id)

# recieve watch events for a prefix via callback function
def watch_callback(event):
    print(event)

watch_id = etcd.add_watch_prefix_callback("/doot/watch/prefix/", watch_callback)

# cancel watch
etcd.cancel_watch(watch_id)