Add some missing docstrings.

boxsdk/client.py

@@ -18,7 +18,17 @@
 class Client(object):
 
     def __init__(self, oauth, network_layer=None):
-        network_layer = network_layer if network_layer else DefaultNetwork()
+        """
+        :param oauth:
+            OAuth2 object used by the session to authorize requests.
+        :type oauth:
+            :class:`OAuth2`
+        :param network_layer:
+            The Network layer to use. If none is provided then an instance of :class:`DefaultNetwork` will be used.
+        :type network_layer:
+            :class:`Network`
+        """
+        network_layer = network_layer or DefaultNetwork()
         self._session = BoxSession(oauth=oauth, network_layer=network_layer)
 
     def folder(self, folder_id):

boxsdk/exception.py

@@ -24,6 +24,36 @@ class BoxAPIException(BoxException):
     Exception raised from the box session layer.
     """
     def __init__(self, status, code=None, message=None, request_id=None, headers=None, url=None, method=None):
+        """
+        :param status:
+            HTTP status code of the failed response
+        :type status:
+            `int`
+        :param code:
+            The 'code' field of the failed response
+        :type code:
+            `unicode`
+        :param message:
+            A message to associate with the exception, e.g. 'message' field of the json in the failed response
+        :type message:
+            `unicode`
+        :param request_id:
+            The 'request_id' field of the json in the failed response
+        :type request_id:
+            `unicode`
+        :param headers:
+            The HTTP headers in the failed response
+        :type headers:
+            `dict`
+        :param url:
+            The url which raised the exception
+        :type url:
+            `unicode`
+        :param method:
+            The HTTP verb used to make the request.
+        :type method:
+            `unicode`
+        """
         super(BoxAPIException, self).__init__()
         self._status = status
         self._code = code
@@ -94,6 +124,24 @@ class BoxOAuthException(BoxException):
     Exception raised during auth.
     """
     def __init__(self, status, message=None, url=None, method=None):
+        """
+        :param status:
+            HTTP status code of the auth response
+        :type status:
+            `int`
+        :param message:
+            A message to associate with the exception, e.g. HTTP content of the auth response
+        :type message:
+            `unicode`
+        :param url:
+            The url which raised the exception
+        :type url:
+            `unicode`
+        :param method:
+            The HTTP verb used to make the request.
+        :type method:
+            `unicode`
+        """
         super(BoxOAuthException, self).__init__()
         self._status = status
         self._message = message