diff --git a/cyborgclient/exceptions.py b/cyborgclient/exceptions.py
index dd0ae31..25aeb8b 100644
--- a/cyborgclient/exceptions.py
+++ b/cyborgclient/exceptions.py
@@ -488,7 +488,7 @@ def from_response(response, method, url, message=None, traceback=None):
                     # message key to the body that has the message and details.
                     error = body.get(list(body)[0])
                     # NOTE(liusheng): the response.json() may like this:
-                    # {u'error_message': u'{"debuginfo": null, "faultcode":
+                    # {'error_message': '{"debuginfo": null, "faultcode":
                     # "Client", "faultstring": "error message"}'}, the
                     # "error_message" in the body is also a json string.
                     if isinstance(error, str):
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 0ac5d94..3a38e4a 100755
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -36,8 +36,8 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = u'python-cyborgclient'
-copyright = u'2017, OpenStack Developers'
+project = 'python-cyborgclient'
+copyright = '2017, OpenStack Developers'
 
 # openstackdocstheme options
 openstackdocs_repo_name = 'openstack/python-cyborgclient'
@@ -71,8 +71,8 @@ htmlhelp_basename = '%sdoc' % project
 latex_documents = [
     ('index',
      '%s.tex' % project,
-     u'%s Documentation' % project,
-     u'OpenStack Developers', 'manual'),
+     '%s Documentation' % project,
+     'OpenStack Developers', 'manual'),
 ]
 
 # Example configuration for intersphinx: refer to the Python standard library.
diff --git a/releasenotes/source/conf.py b/releasenotes/source/conf.py
index ce9bb7e..ed6926d 100644
--- a/releasenotes/source/conf.py
+++ b/releasenotes/source/conf.py
@@ -51,7 +51,7 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-copyright = u'2017, OpenStack Developers'
+copyright = '2017, OpenStack Developers'
 
 # openstackdocstheme options
 openstackdocs_repo_name = 'openstack/python-cyborgclient'
@@ -198,8 +198,8 @@ htmlhelp_basename = 'cyborgclientReleaseNotesdoc'
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
     ('index', 'cyborgclientReleaseNotes.tex',
-     u'cyborgclient  Release Notes Documentation',
-     u'OpenStack Foundation', 'manual'),
+     'cyborgclient  Release Notes Documentation',
+     'OpenStack Foundation', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
@@ -229,8 +229,8 @@ latex_documents = [
 # (source start file, name, description, authors, manual section).
 man_pages = [
     ('index', 'cyborgclientrereleasenotes',
-     u'cyborgclient  Release Notes Documentation',
-     [u'OpenStack Foundation'], 1)
+     'cyborgclient  Release Notes Documentation',
+     ['OpenStack Foundation'], 1)
 ]
 
 # If true, show URL addresses after external links.
@@ -244,8 +244,8 @@ man_pages = [
 #  dir menu entry, description, category)
 texinfo_documents = [
     ('index', 'cyborgclient ReleaseNotes',
-     u'cyborgclient Release Notes Documentation',
-     u'OpenStack Foundation', 'cyborgclientReleaseNotes',
+     'cyborgclient Release Notes Documentation',
+     'OpenStack Foundation', 'cyborgclientReleaseNotes',
      'One line description of project.',
      'Miscellaneous'),
 ]