update python-base

[zshihang]

fixes #616
the python-base changes include:

• set expiration on token of incluster config and reload if expires python-base#191
• allow incluster to accept pass-in config python-base#193

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[zshihang]

/assign @yliaog

[palnabarun]

I don't know if we should put a hold on updating the base client until #1141 gets merged.

What do you think @roycaihw ?

[roycaihw]

It looks like the tests are failing https://travis-ci.org/github/kubernetes-client/python/jobs/683532228:

__ ERROR at setup of TestUtils.test_create_apiservice_from_yaml_with_conflict __
cls = <class 'kubernetes.e2e_test.test_utils.TestUtils'>
    @classmethod
    def setUpClass(cls):
        cls.config = base.get_e2e_configuration()
        cls.path_prefix = "kubernetes/e2e_test/test_yaml/"
        cls.test_namespace = "e2e-test-utils"
        k8s_client = client.api_client.ApiClient(configuration=cls.config)
        core_v1 = client.CoreV1Api(api_client=k8s_client)
        body = client.V1Namespace(metadata=client.V1ObjectMeta(name=cls.test_namespace))
>       core_v1.create_namespace(body=body)
kubernetes/e2e_test/test_utils.py:33: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
kubernetes/client/api/core_v1_api.py:5369: in create_namespace
    (data) = self.create_namespace_with_http_info(body, **kwargs)  # noqa: E501
kubernetes/client/api/core_v1_api.py:5453: in create_namespace_with_http_info
    collection_formats=collection_formats)
kubernetes/client/api_client.py:345: in call_api
    _preload_content, _request_timeout)
kubernetes/client/api_client.py:162: in __call_api
    self.update_params_for_auth(header_params, query_params, auth_settings)
kubernetes/client/api_client.py:519: in update_params_for_auth
    auth_setting = self.configuration.auth_settings().get(auth)
kubernetes/client/configuration.py:220: in auth_settings
    'value': self.get_api_key_with_prefix('authorization')
kubernetes/config/incluster_config.py:90: in wrapped
    in_cluster_config._read_token_file()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
self = <kubernetes.config.incluster_config.InClusterConfigLoader object at 0x7efe97d26250>
    def _read_token_file(self):
>       with open(self._token_filename) as f:
E       IOError: [Errno 2] No such file or directory: '/tmp/tmpbY7GUX'
kubernetes/config/incluster_config.py:97: IOError
______ ERROR at setup of TestUtils.test_create_apps_deployment_from_yaml _______

Travis ci is having trouble reporting the result back to github, but it's still visible in travis. We need to make sure the tests are green before merging

[zshihang]

i have run locally and it is passing.

python -m unittest discover
...
Running test against : https://192.168.9.2:8443
...
Ran 1617 tests in 37.708s

OK

i'll rebase and try again.

[roycaihw]

I think the failing ones are e2e tests, which aren't covered by the unittest

[zshihang]

passing now: https://travis-ci.org/github/kubernetes-client/python/builds/686783519

[roycaihw]

/lgtm
/approve

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