Merge pull request #1634 from grahamlyons/readtimeout_calling_container_stop

Ensure default timeout is used by API Client

docker/client.py

 from .api.client import APIClient
+from .constants import DEFAULT_TIMEOUT_SECONDS
 from .models.containers import ContainerCollection
 from .models.images import ImageCollection
 from .models.networks import NetworkCollection
@@ -73,7 +74,7 @@ class DockerClient(object):
         .. _`SSL version`:
             https://docs.python.org/3.5/library/ssl.html#ssl.PROTOCOL_TLSv1
         """
-        timeout = kwargs.pop('timeout', None)
+        timeout = kwargs.pop('timeout', DEFAULT_TIMEOUT_SECONDS)
         version = kwargs.pop('version', None)
         return cls(timeout=timeout, version=version,
                    **kwargs_from_env(**kwargs))

tests/unit/client_test.py

 import datetime
 import docker
 from docker.utils import kwargs_from_env
+from docker.constants import (
+    DEFAULT_DOCKER_API_VERSION, DEFAULT_TIMEOUT_SECONDS
+)
 import os
 import unittest
 
@@ -96,3 +99,13 @@ class FromEnvTest(unittest.TestCase):
         client = docker.from_env(version='2.32')
         self.assertEqual(client.api.base_url, "https://192.168.59.103:2376")
         self.assertEqual(client.api._version, '2.32')
+
+    def test_from_env_without_version_uses_default(self):
+        client = docker.from_env()
+
+        self.assertEqual(client.api._version, DEFAULT_DOCKER_API_VERSION)
+
+    def test_from_env_without_timeout_uses_default(self):
+        client = docker.from_env()
+
+        self.assertEqual(client.api.timeout, DEFAULT_TIMEOUT_SECONDS)