diff --git a/attachment_s3/__openerp__.py b/attachment_s3/__openerp__.py
index 253b075..f2c51db 100644
--- a/attachment_s3/__openerp__.py
+++ b/attachment_s3/__openerp__.py
@@ -6,7 +6,7 @@
 {'name': 'Attachments on S3 storage',
  'summary': 'Store assets and attachments on a S3 compatible object storage',
  'version': '9.0.1.1.0',
- 'author': 'Camptocamp',
+ 'author': 'Camptocamp,Odoo Community Association (OCA)',
  'license': 'AGPL-3',
  'category': 'Knowledge Management',
  'depends': ['base'],
diff --git a/attachment_s3/models/ir_attachment.py b/attachment_s3/models/ir_attachment.py
index e39ae79..9bf1c42 100644
--- a/attachment_s3/models/ir_attachment.py
+++ b/attachment_s3/models/ir_attachment.py
@@ -10,16 +10,20 @@ import xml.dom.minidom
 from contextlib import closing, contextmanager
 from functools import partial
 
-
-import boto
-from boto.exception import S3ResponseError
-
 import openerp
 from openerp import _, api, exceptions, models, SUPERUSER_ID
 from ..s3uri import S3Uri
 
 _logger = logging.getLogger(__name__)
 
+try:
+    import boto
+    from boto.exception import S3ResponseError
+except ImportError:
+    boto = None  # noqa
+    S3ResponseError = None  # noqa
+    _logger.debug("Cannot 'import boto'.")
+
 
 class IrAttachment(models.Model):
     _inherit = "ir.attachment"
@@ -216,7 +220,8 @@ class IrAttachment(models.Model):
                 elif attachment.db_datas:
                     _logger.info('moving on the object storage from database')
                     attachment.write({'datas': attachment.datas})
-                new_env.cr.commit()
+                # we are in a new env, this is a valid commit
+                new_env.cr.commit()  # pylint: disable=invalid-commit
 
     @contextmanager
     def do_in_new_env(self):
@@ -237,7 +242,9 @@ class IrAttachment(models.Model):
                     cr.rollback()
                     raise
                 else:
-                    cr.commit()
+                    # disable pylint error because this is a valid commit,
+                    # we are in a new env
+                    cr.commit()  # pylint: disable=invalid-commit
 
     @api.model
     def force_storage(self):
diff --git a/cloud_platform/__openerp__.py b/cloud_platform/__openerp__.py
index ad9b54c..14400f1 100644
--- a/cloud_platform/__openerp__.py
+++ b/cloud_platform/__openerp__.py
@@ -6,7 +6,7 @@
 {'name': 'Cloud Platform',
  'summary': 'Addons required for the Camptocamp Cloud Platform',
  'version': '9.0.1.0.0',
- 'author': 'Camptocamp',
+ 'author': 'Camptocamp,Odoo Community Association (OCA)',
  'license': 'AGPL-3',
  'category': 'Extra Tools',
  'depends': [
diff --git a/logging_json/__openerp__.py b/logging_json/__openerp__.py
index 31bca57..e73ded2 100644
--- a/logging_json/__openerp__.py
+++ b/logging_json/__openerp__.py
@@ -4,7 +4,7 @@
 
 {'name': 'JSON Logging',
  'version': '9.0.1.0.0',
- 'author': 'Camptocamp',
+ 'author': 'Camptocamp,Odoo Community Association (OCA)',
  'license': 'AGPL-3',
  'category': 'Extra Tools',
  'depends': ['base',
diff --git a/logging_json/json_log.py b/logging_json/json_log.py
index 2f91915..3fcc796 100644
--- a/logging_json/json_log.py
+++ b/logging_json/json_log.py
@@ -6,7 +6,13 @@ import threading
 
 from distutils.util import strtobool
 
-from pythonjsonlogger import jsonlogger
+_logger = logging.getLogger(__name__)
+
+try:
+    from pythonjsonlogger import jsonlogger
+except ImportError:
+    jsonlogger = None  # noqa
+    _logger.debug("Cannot 'import pythonjsonlogger'.")
 
 
 def is_true(strval):
diff --git a/monitoring_log_requests/__openerp__.py b/monitoring_log_requests/__openerp__.py
index c09fba2..49e73e7 100644
--- a/monitoring_log_requests/__openerp__.py
+++ b/monitoring_log_requests/__openerp__.py
@@ -5,7 +5,7 @@
 
 {'name': 'Monitoring: Requests Logging',
  'version': '9.0.1.0.0',
- 'author': 'Camptocamp',
+ 'author': 'Camptocamp,Odoo Community Association (OCA)',
  'license': 'AGPL-3',
  'category': 'category',
  'depends': ['base', 'web'],
diff --git a/monitoring_status/__openerp__.py b/monitoring_status/__openerp__.py
index 0e024c2..f64afb9 100644
--- a/monitoring_status/__openerp__.py
+++ b/monitoring_status/__openerp__.py
@@ -5,7 +5,7 @@
 
 {'name': 'Monitoring: Status',
  'version': '9.0.1.0.0',
- 'author': 'Camptocamp',
+ 'author': 'Camptocamp,Odoo Community Association (OCA)',
  'license': 'AGPL-3',
  'category': 'category',
  'depends': ['base', 'web'],
diff --git a/session_redis/__openerp__.py b/session_redis/__openerp__.py
index 418cb60..3701910 100644
--- a/session_redis/__openerp__.py
+++ b/session_redis/__openerp__.py
@@ -6,7 +6,7 @@
 {'name': 'Sessions in Redis',
  'summary': 'Store web sessions in Redis',
  'version': '9.0.1.0.0',
- 'author': 'Camptocamp',
+ 'author': 'Camptocamp,Odoo Community Association (OCA)',
  'license': 'AGPL-3',
  'category': 'Extra Tools',
  'depends': ['base'],
diff --git a/session_redis/http.py b/session_redis/http.py
index 4c814e8..a9c5ec0 100644
--- a/session_redis/http.py
+++ b/session_redis/http.py
@@ -7,8 +7,6 @@ import os
 
 from distutils.util import strtobool
 
-import redis
-
 import openerp
 from openerp import http
 from openerp.tools.func import lazy_property
@@ -17,6 +15,12 @@ from .session import RedisSessionStore
 
 _logger = logging.getLogger(__name__)
 
+try:
+    import redis
+except ImportError:
+    redis = None  # noqa
+    _logger.debug("Cannot 'import redis'.")
+
 
 def is_true(strval):
     return bool(strtobool(strval or '0'.lower()))