Replaced sha, md5 module imports with hashlib

third_party/tlslite/tlslite/TLSRecordLayer.py

 """Helper class for TLSConnection."""
 from __future__ import generators
 
 from utils.compat import *
 from utils.cryptomath import *
 from utils.cipherfactory import createAES, createRC4, createTripleDES
 from utils.codec import *
 from errors import *
 from messages import *
 from mathtls import *
 from constants import *
 from utils.cryptomath import getRandomBytes
 from utils import hmac
 from FileObject import FileObject
-import sha
-import md5
+
+# The sha module is deprecated in Python 2.6 
+try:
+    import sha
+except ImportError:
+    from hashlib import sha1 as sha
+
+# The md5 module is deprecated in Python 2.6
+try:
+    import md5
+except ImportError:
+    from hashlib import md5
+
 import socket
 import errno
 import traceback
 
 class _ConnectionState:
     def __init__(self):
         self.macContext = None
         self.encContext = None
         self.seqnum = 0
 
@@ skipping 1092 matching lines @@
 
         imac_md5.update(label + masterSecretStr + '\x36'*48)
         imac_sha.update(label + masterSecretStr + '\x36'*40)
 
         md5Str = md5.md5(masterSecretStr + ('\x5c'*48) + \
                          imac_md5.digest()).digest()
         shaStr = sha.sha(masterSecretStr + ('\x5c'*40) + \
                          imac_sha.digest()).digest()
 
         return stringToBytes(md5Str + shaStr)