@@ -382,3 +382,23 @@
 # service delete
 service.delete()
 # end service delete
+
+# pipeline list
+pipelines = gl.project_pipelines.list(project_id=1)
+# or
+pipelines = project.pipelines.list()
+# end pipeline list
+
+# pipeline get
+pipeline = gl.project_pipelines.get(pipeline_id, project_id=1)
+# or
+pipeline = project.pipelines.get(pipeline_id)
+# end pipeline get
+
+# pipeline retry
+pipeline.retry()
+# end pipeline retry
+
+# pipeline cancel
+pipeline.cancel()
+# end pipeline cancel
@@ -395,6 +395,37 @@ Delete a project hook:
    :start-after: # hook delete
    :end-before: # end hook delete
 
+Pipelines
+---------
+
+Use :class:`~gitlab.objects.ProjectPipeline` objects to manipulate projects
+pipelines. The :attr:`gitlab.Gitlab.project_pipelines` and
+:attr:`Project.services <gitlab.objects.Projects.pipelines>` manager objects
+provide helper functions.
+
+List pipelines for a project:
+
+.. literalinclude:: projects.py
+   :start-after: # pipeline list
+   :end-before: # end pipeline list
+
+Get a pipeline for a project:
+
+.. literalinclude:: projects.py
+   :start-after: # pipeline get
+   :end-before: # end pipeline get
+
+Retry the failed builds for a pipeline:
+
+.. literalinclude:: projects.py
+   :start-after: # pipeline retry
+   :end-before: # end pipeline retry
+
+Cancel builds in a pipeline:
+
+.. literalinclude:: projects.py
+   :start-after: # pipeline cancel
+   :end-before: # end pipeline cancel
 Services
 --------
 
 
@@ -102,6 +102,8 @@ class Gitlab(object):
         project_members (ProjectMemberManager): Manager for GitLab projects
             members
         project_notes (ProjectNoteManager): Manager for GitLab projects notes
+        project_pipelines (ProjectPipelineManager): Manager for GitLab projects
+            pipelines
         project_tags (ProjectTagManager): Manager for GitLab projects tags
         project_mergerequest_notes (ProjectMergeRequestNoteManager): Manager
             for GitLab notes on merge requests
@@ -179,6 +181,7 @@ def __init__(self, url, private_token=None, email=None, password=None,
         self.project_issues = ProjectIssueManager(self)
         self.project_members = ProjectMemberManager(self)
         self.project_notes = ProjectNoteManager(self)
+        self.project_pipelines = ProjectPipelineManager(self)
         self.project_tags = ProjectTagManager(self)
         self.project_mergerequest_notes = ProjectMergeRequestNoteManager(self)
         self.project_mergerequests = ProjectMergeRequestManager(self)
 
@@ -75,11 +75,27 @@ class GitlabTransferProjectError(GitlabOperationError):
     pass
 
 
-class GitlabBuildCancelError(GitlabOperationError):
+class GitlabCancelError(GitlabOperationError):
     pass
 
 
-class GitlabBuildRetryError(GitlabOperationError):
+class GitlabBuildCancelError(GitlabCancelError):
+    pass
+
+
+class GitlabPipelineCancelError(GitlabCancelError):
+    pass
+
+
+class GitlabRetryError(GitlabOperationError):
+    pass
+
+
+class GitlabBuildRetryError(GitlabRetryError):
+    pass
+
+
+class GitlabPipelineRetryError(GitlabRetryError):
     pass
 
 
 
@@ -1610,6 +1610,43 @@ class ProjectFileManager(BaseManager):
     obj_cls = ProjectFile
 
 
+class ProjectPipeline(GitlabObject):
+    _url = '/projects/%(project_id)s/pipelines'
+    canCreate = False
+    canUpdate = False
+    canDelete = False
+
+    def retry(self, **kwargs):
+        """Retries failed builds in a pipeline.
+
+        Raises:
+            GitlabConnectionError: If the server cannot be reached.
+            GitlabPipelineRetryError: If the retry cannot be done.
+        """
+        url = ('/projects/%(project_id)s/pipelines/%(id)s/retry' %
+               {'project_id': self.project_id, 'id': self.id})
+        r = self.gitlab._raw_post(url, data=None, content_type=None, **kwargs)
+        raise_error_from_response(r, GitlabPipelineRetryError, 201)
+        self._set_from_dict(r.json())
+
+    def cancel(self, **kwargs):
+        """Cancel builds in a pipeline.
+
+        Raises:
+            GitlabConnectionError: If the server cannot be reached.
+            GitlabPipelineCancelError: If the retry cannot be done.
+        """
+        url = ('/projects/%(project_id)s/pipelines/%(id)s/cancel' %
+               {'project_id': self.project_id, 'id': self.id})
+        r = self.gitlab._raw_post(url, data=None, content_type=None, **kwargs)
+        raise_error_from_response(r, GitlabPipelineRetryError, 200)
+        self._set_from_dict(r.json())
+
+
+class ProjectPipelineManager(BaseManager):
+    obj_cls = ProjectPipeline
+
+
 class ProjectSnippetNote(GitlabObject):
     _url = '/projects/%(project_id)s/snippets/%(snippet_id)s/notes'
     _constructorTypes = {'author': 'User'}
@@ -1804,6 +1841,7 @@ class Project(GitlabObject):
         ('mergerequests', ProjectMergeRequestManager, [('project_id', 'id')]),
         ('milestones', ProjectMilestoneManager, [('project_id', 'id')]),
         ('notes', ProjectNoteManager, [('project_id', 'id')]),
+        ('pipelines', ProjectPipelineManager, [('project_id', 'id')]),
         ('services', ProjectServiceManager, [('project_id', 'id')]),
         ('snippets', ProjectSnippetManager, [('project_id', 'id')]),
         ('tags', ProjectTagManager, [('project_id', 'id')]),