Signed-off-by: Gábor Lipták <[email protected]>

Add Python 3.9 to build

configmap e2e: use labels and label selector

changed file naming style consistent with the existing go client code

Update example.py

Changed file and folder names

Rename LeaderElection.py to leaderelection.py

Rename threadingWithException.py to threadingwithexception.py

Rename ConfigMapLock.py to configmaplock.py

LeaderElection to leaderelection

Added boiler plate headers, updated variable and function names consistent with the guidelines, removed the ctypes dependency by using traces to kill threads, changed logic for leader now it gives up and doesn't re-join as a follower if it fails to update lease

added correct boiler plate year

Rename threadingWithTrace.py to threadingwithtrace.py

Update leaderelection.py

Update example.py

Changes based on review - logging, OnStoppedLeading is not killed abruptly, OnStartedLeading is not run in a separate thread, adding README

Update example.py

updated comments

set threads as daemon

Update README.md

Code made consistent with other clients.

Update example.py

Update leaderelection.py

Error & exception handling for the annotation, reduced indentation

Adding serializing functions for serializing & de-serializing locks, leader_election_record as a class

Adding a test

Adding boilerplate header

Rename leaderelectiontest.py to leaderelection_test.py

Updated boiler plates

handling imports for pytest

handling 'HTTP not found' compatibility with python 2 & 3, & handling relative imports

Update leaderelection.py

to check tests for tox

assertEquals -> assertEqual

Update leaderelection_test.py

making Threading compatible for Python 2

changing datetime.timestamp for backward compatibility with Python 2.7

Adding comments for test_Leader_election_with_renew_deadline & making
candidates run in parallel for test_leader_election

remove redundant daemon = True reassignment

common thread lock for MockResourceLock

Leader Election issue #434

fix: load cache error when CacheDecoder object is not callable

raise exception when an empty config file is passed to load_kube_config

Fix bug with Watch and 410 retries