fix: use version.py instead of pkg_resources.get_distribution (#307)

* fix: use version.py instead of pkg_resources.get_distribution

* fix: nit

google/cloud/bigquery/__init__.py

@@ -28,9 +28,9 @@
 """
 
 
-from pkg_resources import get_distribution
+from google.cloud.bigquery import version as bigquery_version
 
-__version__ = get_distribution("google-cloud-bigquery").version
+__version__ = bigquery_version.__version__
 
 from google.cloud.bigquery.client import Client
 from google.cloud.bigquery.dataset import AccessEntry

google/cloud/bigquery/version.py

@@ -0,0 +1,15 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__version__ = "2.1.0"

setup.py

@@ -22,7 +22,7 @@
 
 name = "google-cloud-bigquery"
 description = "Google BigQuery API client library"
-version = "2.1.0"
+
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'
@@ -83,6 +83,11 @@
 with io.open(readme_filename, encoding="utf-8") as readme_file:
     readme = readme_file.read()
 
+version = {}
+with open(os.path.join(package_root, "google/cloud/bigquery/version.py")) as fp:
+    exec(fp.read(), version)
+version = version["__version__"]
+
 # Only include packages under the 'google' namespace. Do not include tests,
 # benchmarks, etc.
 packages = [