fix: use version.py for versioning, avoid issues with discovering version via get_distribution

[crwilcox]

No description provided.

[crwilcox]

As it is a bit more robust, I added version.py to google-cloud-storage

[tseaver]

@crwilcox Needs a git add google/cloud/storage/version.py.

[crwilcox]

Test failures seem unrelated to me?

_______________________________________________________________ TestClient.test_lookup_bucket_with_metageneration_match ________________________________________________________________ self = <tests.unit.test_client.TestClient testMethod=test_lookup_bucket_with_metageneration_match> def test_lookup_bucket_with_metageneration_match(self): from google.cloud.storage.bucket import Bucket PROJECT = "PROJECT" CREDENTIALS = _make_credentials() METAGENERATION_NUMBER = 6 client = self._make_one(project=PROJECT, credentials=CREDENTIALS) BUCKET_NAME = "bucket-name" URI1 = "/".join( [ client._connection.API_BASE_URL, "storage", client._connection.API_VERSION, "b", "%s?projection=noAcl&ifMetagenerationMatch=%s" % (BUCKET_NAME, METAGENERATION_NUMBER), ] ) URI2 = "/".join( [ client._connection.API_BASE_URL, "storage", client._connection.API_VERSION, "b", "%s?ifMetagenerationMatch=%s&projection=noAcl" % (BUCKET_NAME, METAGENERATION_NUMBER), ] ) data = {"name": BUCKET_NAME} http = _make_requests_session([_make_json_response(data)]) client._http_internal = http bucket = client.lookup_bucket( BUCKET_NAME, if_metageneration_match=METAGENERATION_NUMBER ) self.assertIsInstance(bucket, Bucket) self.assertEqual(bucket.name, BUCKET_NAME) http.request.assert_called_once_with( method="GET", url=mock.ANY, data=mock.ANY, headers=mock.ANY, timeout=self._get_default_timeout(), ) _, kwargs = http.request.call_args > self.assertIn(kwargs.get("url"), (URI1, URI2)) E AssertionError: 'https://storage.googleapis.com/storage/v1/b/bucket-name?projection=noAcl&ifMetagenerationMatch=6&prettyPrint=false' not found in ('https://storage.googleapis.com/storage/v1/b/bucket-name?projection=noAcl&ifMetagenerationMatch=6', 'https://storage.googleapis.com/storage/v1/b/bucket-name?ifMetagenerationMatch=6&projection=noAcl') tests/unit/test_client.py:663: AssertionError 

Seems prettyPrint is showing up? Confirmed same failures on master. @andrewsg

[tseaver]

@crwilcox &prettyPrint=False got added to URLs via https://www.github.com/googleapis/python-cloud-core/pull/28.

[tseaver]

We need to pull in @tswast's changes from #277 to get the tests to pass on latest google-cloud-core.

[tseaver]

@crwilcox I just merged #277 to fix the tests on master.