Merge pull request #714 from roycaihw/release-9.0.0a1

Release 9.0.0a1: update version constant

Author: k8s-ci-robot

CHANGELOG.md

@@ -1,4 +1,7 @@
 # v9.0.0a1
+**New Feature:**
+- Avoid creating unused ThreadPools [kubernetes-client/gen#91](https://github.com/kubernetes-client/gen/pull/91)
+
 **Bug Fix:**
 - Refresh GCP auth tokens on API retrieval [kubernetes-client/python-base#92](https://github.com/kubernetes-client/python-base/pull/92)
 - Fix kubeconfig loading failure when server uri contains trailing slash [kubernetes-client/python-base#45](https://github.com/kubernetes-client/python-base/pull/45)

kubernetes/README.md

@@ -3,8 +3,8 @@ No description provided (generated by Swagger Codegen https://github.com/swagger
 
 This Python package is automatically generated by the [Swagger Codegen](https://github.com/swagger-api/swagger-codegen) project:
 
-- API version: v1.13.1
-- Package version: 9.0.0-snapshot
+- API version: v1.13.2
+- Package version: 9.0.0a1
 - Build package: io.swagger.codegen.languages.PythonClientCodegen
 
 ## Requirements.

kubernetes/__init__.py

@@ -14,7 +14,7 @@
 
 __project__ = 'kubernetes'
 # The version is auto-updated. Please do not edit.
-__version__ = "9.0.0-snapshot"
+__version__ = "9.0.0a1"
 
 import kubernetes.client
 import kubernetes.config

kubernetes/client/__init__.py

@@ -5,7 +5,7 @@
 
     No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen)
 
-    OpenAPI spec version: v1.13.1
+    OpenAPI spec version: v1.13.2
     
     Generated by: https://github.com/swagger-api/swagger-codegen.git
 """

kubernetes/client/api_client.py

@@ -4,7 +4,7 @@
 
     No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen)
 
-    OpenAPI spec version: v1.13.1
+    OpenAPI spec version: v1.13.2
     
     Generated by: https://github.com/swagger-api/swagger-codegen.git
 """
@@ -58,24 +58,37 @@ class ApiClient(object):
         'datetime': datetime,
         'object': object,
     }
+    _pool = None
 
-    def __init__(self, configuration=None, header_name=None, header_value=None, cookie=None):
+    def __init__(self, configuration=None, header_name=None, header_value=None,
+                 cookie=None, pool_threads=None):
         if configuration is None:
             configuration = Configuration()
         self.configuration = configuration
+        self.pool_threads = pool_threads
 
-        self.pool = ThreadPool()
         self.rest_client = RESTClientObject(configuration)
         self.default_headers = {}
         if header_name is not None:
             self.default_headers[header_name] = header_value
         self.cookie = cookie
         # Set default User-Agent.
-        self.user_agent = 'Swagger-Codegen/9.0.0-snapshot/python'
+        self.user_agent = 'Swagger-Codegen/9.0.0a1/python'
 
     def __del__(self):
-        self.pool.close()
-        self.pool.join()
+        if self._pool:
+            self._pool.close()
+            self._pool.join()
+            self._pool = None
+
+    @property
+    def pool(self):
+        """Create thread pool on first request
+         avoids instantiating unused threadpool for blocking clients.
+        """
+        if self._pool is None:
+            self._pool = ThreadPool(self.pool_threads)
+        return self._pool
 
     @property
     def user_agent(self):