Be explicit about objects exported by modules.

Change-Id: Iaea087c6c3a024922034423a8d56571184f33b7c

jenkins_jobs/builder.py

@@ -34,6 +34,9 @@ from jenkins_jobs.constants import MAGIC_MANAGE_STRING
 from jenkins_jobs.parallel import concurrent
 from jenkins_jobs import utils
 
+__all__ = [
+    "Jenkins"
+]
 
 logger = logging.getLogger(__name__)
 

jenkins_jobs/parser.py

@@ -28,6 +28,10 @@ from jenkins_jobs.formatter import deep_format
 import jenkins_jobs.local_yaml as local_yaml
 from jenkins_jobs import utils
 
+__all__ = [
+    "YamlParser"
+]
+
 logger = logging.getLogger(__name__)
 
 

jenkins_jobs/registry.py

@@ -24,6 +24,10 @@ import types
 from jenkins_jobs.errors import JenkinsJobsException
 from jenkins_jobs.formatter import deep_format
 
+__all__ = [
+    "ModuleRegistry"
+]
+
 logger = logging.getLogger(__name__)
 
 

jenkins_jobs/xml_config.py

@@ -20,6 +20,11 @@ import pkg_resources
 from xml.dom import minidom
 import xml.etree.ElementTree as XML
 
+__all__ = [
+    "XmlJobGenerator",
+    "XmlJob"
+]
+
 
 def remove_ignorable_whitespace(node):
     """Remove insignificant whitespace from XML nodes