diff --git a/docker/auth/auth.py b/docker/auth/auth.py
index d62705f0..871996de 100644
--- a/docker/auth/auth.py
+++ b/docker/auth/auth.py
@@ -20,6 +20,7 @@ import os
 import six
 
 from ..utils import utils
+from docker import errors
 
 INDEX_URL = 'https://index.docker.io/v1/'
 DOCKER_CONFIG_FILENAME = '.dockercfg'
@@ -45,18 +46,19 @@ def expand_registry_url(hostname):
 
 def resolve_repository_name(repo_name):
     if '://' in repo_name:
-        raise ValueError('Repository name cannot contain a '
-                         'scheme ({0})'.format(repo_name))
+        raise errors.InvalidRepository(
+            'Repository name cannot contain a scheme ({0})'.format(repo_name))
     parts = repo_name.split('/', 1)
     if '.' not in parts[0] and ':' not in parts[0] and parts[0] != 'localhost':
         # This is a docker index repo (ex: foo/bar or ubuntu)
         return INDEX_URL, repo_name
     if len(parts) < 2:
-        raise ValueError('Invalid repository name ({0})'.format(repo_name))
+        raise errors.InvalidRepository(
+            'Invalid repository name ({0})'.format(repo_name))
 
     if 'index.docker.io' in parts[0]:
-        raise ValueError('Invalid repository name,'
-                         'try "{0}" instead'.format(parts[1]))
+        raise errors.InvalidRepository(
+            'Invalid repository name, try "{0}" instead'.format(parts[1]))
 
     return expand_registry_url(parts[0]), parts[1]
 
@@ -147,7 +149,8 @@ def load_config(root=None):
             data.append(line.strip().split(' = ')[1])
         if len(data) < 2:
             # Not enough data
-            raise Exception('Invalid or empty configuration file!')
+            raise errors.InvalidConfigFile(
+                'Invalid or empty configuration file!')
 
         username, password = decode_auth(data[0])
         conf[INDEX_URL] = {
diff --git a/docker/client.py b/docker/client.py
index 5dfa889d..8a635438 100644
--- a/docker/client.py
+++ b/docker/client.py
@@ -341,7 +341,7 @@ class Client(requests.Session):
               nocache=False, rm=False, stream=False, timeout=None):
         remote = context = headers = None
         if path is None and fileobj is None:
-            raise Exception("Either path or fileobj needs to be provided.")
+            raise TypeError("Either path or fileobj needs to be provided.")
 
         if fileobj is not None:
             context = utils.mkbuildcontext(fileobj)
diff --git a/docker/errors.py b/docker/errors.py
new file mode 100644
index 00000000..a462f93d
--- /dev/null
+++ b/docker/errors.py
@@ -0,0 +1,24 @@
+#    Copyright 2014 dotCloud inc.
+#    Licensed under the Apache License, Version 2.0 (the "License");
+#    you may not use this file except in compliance with the License.
+#    You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+
+
+class DockerException(Exception):
+    pass
+
+
+class InvalidRepository(DockerException):
+    pass
+
+
+class InvalidConfigFile(DockerException):
+    pass