Specify HTTP client when building service

src/main/java/com/google/api/codegen/discovery/transformer/py/PythonSampleMethodToViewTransformer.java

@@ -117,6 +117,7 @@ private SampleView createSampleView(SampleTransformerContext context) {
     discoveryBuildParams.add(String.format("'%s'", config.apiVersion()));
     switch (config.authType()) {
       case NONE:
+        discoveryBuildParams.add("http=httplib2.Http(timeout=60)");
         break;
       case API_KEY:
         discoveryBuildParams.add("developerKey=" + credentialsVarName);

src/main/resources/com/google/api/codegen/py/sample.snip

@@ -24,6 +24,9 @@
         from pprint import pprint
     @end
 
+    @if class.auth.type == "NONE"
+        import httplib2
+    @end
     from googleapiclient import discovery
     @if class.auth.type == "APPLICATION_DEFAULT_CREDENTIALS"
         from oauth2client.client import GoogleCredentials

src/test/java/com/google/api/codegen/testdata/discoveries/py/py_foo.v1.json.baseline

@@ -10,9 +10,10 @@ BEFORE RUNNING:
 """
 from pprint import pprint
 
+import httplib2
 from googleapiclient import discovery
 
-service = discovery.build('foo', 'v1', discoveryServiceUrl='localhost:8080/$discovery/foo?version=v1')
+service = discovery.build('foo', 'v1', http=httplib2.Http(timeout=60), discoveryServiceUrl='localhost:8080/$discovery/foo?version=v1')
 
 request = service.baz().get()
 response = request.execute()