diff --git a/scrapy/trunk/scrapy/contrib/downloadermiddleware/cache.py b/scrapy/trunk/scrapy/contrib/downloadermiddleware/cache.py
index 4b56ebe37..3a8de6484 100644
--- a/scrapy/trunk/scrapy/contrib/downloadermiddleware/cache.py
+++ b/scrapy/trunk/scrapy/contrib/downloadermiddleware/cache.py
@@ -1,7 +1,7 @@
 from __future__ import with_statement
 
 import os
-import sha
+import hashlib
 import datetime
 import urlparse
 from pydispatch import dispatcher
@@ -83,7 +83,7 @@ class Cache(object):
             os.makedirs(self.basesectorpath)
 
     def domainsectorpath(self, domain):
-        sector = sha.sha(domain).hexdigest()[0]
+        sector = hashlib.sha1(domain).hexdigest()[0]
         return os.path.join(self.basesectorpath, sector, domain)
 
     def domainlinkpath(self, domain):
diff --git a/scrapy/trunk/scrapy/contrib/history/middleware.py b/scrapy/trunk/scrapy/contrib/history/middleware.py
index 45e3f3f51..2c97bf4b0 100644
--- a/scrapy/trunk/scrapy/contrib/history/middleware.py
+++ b/scrapy/trunk/scrapy/contrib/history/middleware.py
@@ -1,4 +1,4 @@
-import sha
+import hashlib
 from datetime import datetime
 
 from pydispatch import dispatcher
@@ -84,4 +84,4 @@ def urlkey(url):
 
 
 def hash(value):
-    return sha.new(value).hexdigest() if value else None
+    return hashlib.sha1(value).hexdigest() if value else None
diff --git a/scrapy/trunk/scrapy/contrib/item/models.py b/scrapy/trunk/scrapy/contrib/item/models.py
index 7d6467e93..ede4bef24 100644
--- a/scrapy/trunk/scrapy/contrib/item/models.py
+++ b/scrapy/trunk/scrapy/contrib/item/models.py
@@ -3,7 +3,7 @@ This module contains some extra base models for scraped items which could be
 useful in some Scrapy implementations
 """
 
-import sha
+import hashlib
 
 from scrapy.item import ScrapedItem
 from scrapy.core.exceptions import UsageError, DropItem
@@ -135,6 +135,6 @@ class RobustScrapedItem(ScrapedItem):
         """
         if self._version:
             return self._version
-        hash_ = sha.new()
+        hash_ = hashlib.sha1()
         hash_.update("".join(["".join([n, str(v)]) for n,v in sorted(self.__dict__.iteritems())]))
         return hash_.hexdigest()
diff --git a/scrapy/trunk/scrapy/contrib/web/service.py b/scrapy/trunk/scrapy/contrib/web/service.py
index db112d5af..e2826d410 100644
--- a/scrapy/trunk/scrapy/contrib/web/service.py
+++ b/scrapy/trunk/scrapy/contrib/web/service.py
@@ -1,7 +1,7 @@
 import re
 import urllib
 import simplejson
-from sha import sha
+import hashlib
 from twisted.internet import defer
 
 from scrapy.core.engine import scrapyengine
@@ -22,7 +22,7 @@ CACHESIZE = settings.get('WS_CACHESIZE', 20)
 
 
 def _urlhash(request):
-    h = sha()
+    h = hashlib.sha1()
     for a in sorted(request.ARGS):
         h.update(request.ARGS[a])
     return h.hexdigest()
diff --git a/scrapy/trunk/scrapy/http/request.py b/scrapy/trunk/scrapy/http/request.py
index 84d7377ad..bca51d323 100644
--- a/scrapy/trunk/scrapy/http/request.py
+++ b/scrapy/trunk/scrapy/http/request.py
@@ -1,6 +1,6 @@
 import urllib
 import warnings
-from hashlib import sha1
+import hashlib
 from copy import copy
 from base64 import urlsafe_b64encode
 
@@ -149,7 +149,7 @@ class Request(object):
                     headers = dict([(k, v) for k, v in self.headers.items() if k.lower() not in keys])
 
         # fingerprint generation
-        fp = sha1()
+        fp = hashlib.sha1()
         fp.update(canonicalize(self.url))
         fp.update(self.method)
 
diff --git a/scrapy/trunk/scrapy/http/response.py b/scrapy/trunk/scrapy/http/response.py
index 742486e88..6c619c2d4 100644
--- a/scrapy/trunk/scrapy/http/response.py
+++ b/scrapy/trunk/scrapy/http/response.py
@@ -1,5 +1,5 @@
 import re
-import sha
+import hashlib
 import copy
 
 from BeautifulSoup import UnicodeDammit
@@ -41,7 +41,7 @@ class Response(object) :
     def version(self):
         """A hash of the contents of this response"""
         if not hasattr(self, '_version'):
-            self._version = sha.new(self.body.to_string()).hexdigest()
+            self._version = hashlib.sha1(self.body.to_string()).hexdigest()
         return self._version
 
     def headers_encoding(self):