diff --git a/sendgrid/__init__.py b/sendgrid/__init__.py
index fb743303a..2d4bca1c5 100644
--- a/sendgrid/__init__.py
+++ b/sendgrid/__init__.py
@@ -1,7 +1,5 @@
-from sendgrid import *
-from message import *
-
-del sendgrid, message
+from .sendgrid import *
+from .message import *
 
 __version__ = "0.1.3"
 version_info = (0, 1, 3)
diff --git a/sendgrid/message.py b/sendgrid/message.py
index 8ef483a4a..67c49c758 100644
--- a/sendgrid/message.py
+++ b/sendgrid/message.py
@@ -1,5 +1,5 @@
-import rfc822
-from header import SmtpApiHeader
+import email.utils as email_utils
+from . header import SmtpApiHeader
 
 
 class Message(object):
@@ -41,7 +41,7 @@ def __init__(self, addr_from, subject, text="", html=""):
         self.headers = {}
         self.attachments = []
         self.header = SmtpApiHeader()
-        self.date = rfc822.formatdate()
+        self.date = email_utils.formatdate()
 
     def set_replyto(self, replyto):
         """
@@ -74,7 +74,7 @@ def add_to(self, recipients, names=None):
         if not recipients:
             raise ValueError('No recipients')
 
-        if isinstance(recipients, (str, unicode)):
+        if isinstance(recipients, str):
             self.to += [recipients]
             if names:
                 self.to_name += [names]
@@ -125,13 +125,13 @@ def add_cc(self, recipients):
         Returns:
             self
         """
-        if isinstance(recipients, (str, unicode)):
+        if isinstance(recipients, str):
             self.cc += [recipients]
         else:
             self.cc += recipients
 
         self.header.add_cc(recipients)
-        
+
         return self
 
     def add_bcc(self, recipients):
@@ -144,13 +144,13 @@ def add_bcc(self, recipients):
         Returns:
             self
         """
-        if isinstance(recipients, (str, unicode)):
+        if isinstance(recipients, str):
             self.bcc += [recipients]
         else:
             self.bcc += recipients
 
         self.header.add_bcc(recipients)
-        
+
         return self
 
     def add_attachment(self, name, file, cid=None):
@@ -179,7 +179,7 @@ def add_category(self, category):
         Returns:
             self
         """
-        if isinstance(category, (str, unicode)):
+        if isinstance(category, str):
             self.header.add_category(category)
         else:
             for cat in category:
diff --git a/sendgrid/sendgrid.py b/sendgrid/sendgrid.py
index 65e572557..3373e0bb9 100644
--- a/sendgrid/sendgrid.py
+++ b/sendgrid/sendgrid.py
@@ -36,7 +36,7 @@ def web(self):
         """
         Return web transport
         """
-        from transport import web
+        from . transport import web
         return web.Http(self.username, self.password, ssl=self.secure, user=self.user)
 
 
@@ -46,5 +46,5 @@ def smtp(self):
         """
         Return smtp transport
         """
-        from transport import smtp
+        from . transport import smtp
         return smtp.Smtp(self.username, self.password, tls=self.secure)
diff --git a/sendgrid/transport/web.py b/sendgrid/transport/web.py
index 1d543a30d..0126408be 100644
--- a/sendgrid/transport/web.py
+++ b/sendgrid/transport/web.py
@@ -1,5 +1,5 @@
 import urllib
-import urllib2
+
 try:
     import json
 except ImportError:
@@ -87,18 +87,19 @@ def send(self, message):
             if optional_params[key]:
                 data[key] = optional_params[key]
 
-        data = urllib.urlencode(data, 1)
-        req = urllib2.Request(url, data)
+        data = urllib.parse.urlencode(data, 1)
+        data = data.encode('utf8')
+        req = urllib.request.Request(url, data)
         try:
-            f = urllib2.urlopen(req)
+            f = urllib.request.urlopen(req)
             output = f.read()
-        except IOError, e:
+        except IOError as e:
             try:
                 output = e.read()
             except AttributeError:
                 raise exceptions.SGServiceException(e)
 
-        output = json.loads(output)
+        output = json.loads(output.decode('utf8'))
 
         if output['message'] == 'error':
             raise exceptions.SGServiceException(output['errors'])