diff --git a/dtls/openssl.py b/dtls/openssl.py
index 2bbef8a..a298450 100644
--- a/dtls/openssl.py
+++ b/dtls/openssl.py
@@ -38,9 +38,9 @@ import socket
 from logging import getLogger
 from os import path
 from datetime import timedelta
-from err import openssl_error
-from err import SSL_ERROR_NONE
-from util import _EC_KEY, _BIO
+from .err import openssl_error
+from .err import SSL_ERROR_NONE
+from .util import _EC_KEY, _BIO
 import ctypes
 from ctypes import CDLL
 from ctypes import CFUNCTYPE
diff --git a/dtls/patch.py b/dtls/patch.py
index 7f83a68..8ff3e75 100644
--- a/dtls/patch.py
+++ b/dtls/patch.py
@@ -34,18 +34,19 @@ has the following effects:
       PROTOCOL_DTLSv1 for the parameter ssl_version is supported
 """
 
-from socket import socket, getaddrinfo, _delegate_methods, error as socket_error
+# from socket import socket, getaddrinfo, _delegate_methods, error as socket_error
+from socket import socket, getaddrinfo, error as socket_error
 from socket import AF_INET, SOCK_STREAM, SOCK_DGRAM
 from ssl import PROTOCOL_SSLv23, CERT_NONE
 from types import MethodType
 from weakref import proxy
 import errno
 
-from sslconnection import SSLConnection, PROTOCOL_DTLS, PROTOCOL_DTLSv1, PROTOCOL_DTLSv1_2
-from sslconnection import DTLS_OPENSSL_VERSION_NUMBER, DTLS_OPENSSL_VERSION, DTLS_OPENSSL_VERSION_INFO
-from sslconnection import SSL_BUILD_CHAIN_FLAG_NONE, SSL_BUILD_CHAIN_FLAG_UNTRUSTED, \
+from .sslconnection import SSLConnection, PROTOCOL_DTLS, PROTOCOL_DTLSv1, PROTOCOL_DTLSv1_2
+from .sslconnection import DTLS_OPENSSL_VERSION_NUMBER, DTLS_OPENSSL_VERSION, DTLS_OPENSSL_VERSION_INFO
+from .sslconnection import SSL_BUILD_CHAIN_FLAG_NONE, SSL_BUILD_CHAIN_FLAG_UNTRUSTED, \
     SSL_BUILD_CHAIN_FLAG_NO_ROOT, SSL_BUILD_CHAIN_FLAG_CHECK, SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR, SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR
-from err import raise_as_ssl_module_error, patch_ssl_errors
+from .err import raise_as_ssl_module_error, patch_ssl_errors
 
 
 def do_patch():
@@ -158,11 +159,11 @@ def _SSLSocket_init(self, sock=None, keyfile=None, certfile=None,
     else:
         socket.__init__(self, _sock=sock.get_socket(True)._sock)
     # Copy instance initialization from SSLSocket class
-    for attr in _delegate_methods:
-        try:
-            delattr(self, attr)
-        except AttributeError:
-            pass
+    #for attr in _delegate_methods:
+    #    try:
+    #        delattr(self, attr)
+    #    except AttributeError:
+    #        pass
 
     if certfile and not keyfile:
         keyfile = certfile
diff --git a/dtls/sslconnection.py b/dtls/sslconnection.py
index 5b69b06..18a9a04 100644
--- a/dtls/sslconnection.py
+++ b/dtls/sslconnection.py
@@ -50,17 +50,17 @@ from os import urandom
 from select import select
 from weakref import proxy
 
-from err import openssl_error, InvalidSocketError
-from err import raise_ssl_error
-from err import SSL_ERROR_WANT_READ, SSL_ERROR_SYSCALL
-from err import ERR_WRONG_VERSION_NUMBER, ERR_COOKIE_MISMATCH, ERR_NO_SHARED_CIPHER
-from err import ERR_NO_CIPHER, ERR_HANDSHAKE_TIMEOUT, ERR_PORT_UNREACHABLE
-from err import ERR_READ_TIMEOUT, ERR_WRITE_TIMEOUT
-from err import ERR_BOTH_KEY_CERT_FILES, ERR_BOTH_KEY_CERT_FILES_SVR, ERR_NO_CERTS
-from x509 import _X509, decode_cert
-from tlock import tlock_init
-from openssl import *
-from util import _Rsrc, _BIO
+from .err import openssl_error, InvalidSocketError
+from .err import raise_ssl_error
+from .err import SSL_ERROR_WANT_READ, SSL_ERROR_SYSCALL
+from .err import ERR_WRONG_VERSION_NUMBER, ERR_COOKIE_MISMATCH, ERR_NO_SHARED_CIPHER
+from .err import ERR_NO_CIPHER, ERR_HANDSHAKE_TIMEOUT, ERR_PORT_UNREACHABLE
+from .err import ERR_READ_TIMEOUT, ERR_WRITE_TIMEOUT
+from .err import ERR_BOTH_KEY_CERT_FILES, ERR_BOTH_KEY_CERT_FILES_SVR, ERR_NO_CERTS
+from .x509 import _X509, decode_cert
+from .tlock import tlock_init
+from .openssl import *
+from .util import _Rsrc, _BIO
 
 _logger = getLogger(__name__)
 
diff --git a/dtls/tlock.py b/dtls/tlock.py
index 682c0e0..7e17ccc 100644
--- a/dtls/tlock.py
+++ b/dtls/tlock.py
@@ -25,7 +25,7 @@ threading support. It does not have client-visible components.
 """
 
 from logging import getLogger
-from openssl import *
+from .openssl import *
 
 try:
     import threading
diff --git a/dtls/wrapper.py b/dtls/wrapper.py
index cdb267c..9680f94 100644
--- a/dtls/wrapper.py
+++ b/dtls/wrapper.py
@@ -35,10 +35,10 @@ from logging import getLogger
 
 import ssl
 import socket
-from patch import do_patch
+from .patch import do_patch
 do_patch()
-from sslconnection import SSLContext, SSL
-import err as err_codes
+from .sslconnection import SSLContext, SSL
+import .err as err_codes
 
 _logger = getLogger(__name__)
 
diff --git a/dtls/x509.py b/dtls/x509.py
index f6e03f7..3db91f3 100644
--- a/dtls/x509.py
+++ b/dtls/x509.py
@@ -31,8 +31,8 @@ interpreter.
 """
 
 from logging import getLogger
-from openssl import *
-from util import _Rsrc, _BIO
+from .openssl import *
+from .util import _Rsrc, _BIO
 
 _logger = getLogger(__name__)