Python 3 preparation: use range() instead of xrange().

Tool-assisted patch.  None of the existing range() uses seem to need
to be wrapped in list().  Note that range() may be less efficient than
xrange() in Python 2.

Author: jsm28

roundup/backends/indexer_rdbms.py

@@ -119,7 +119,7 @@ def find(self, wordlist):
 
             join_list = []
             match_list = []
-            for n in xrange(len(l) - 1):
+            for n in range(len(l) - 1):
                 join_list.append(join_tmpl % (n + 2))
                 match_list.append(match_tmpl % (n + 2, self.db.arg))
 

roundup/cgi/TAL/TALGenerator.py

@@ -79,7 +79,7 @@ def optimize(self, program):
             endsep = "/>"
         else:
             endsep = " />"
-        for cursor in xrange(len(program)+1):
+        for cursor in range(len(program)+1):
             try:
                 item = program[cursor]
             except IndexError:

roundup/password.py

@@ -33,7 +33,7 @@
 _bjoin = _bempty.join
 
 def getrandbytes(count):
-    return _bjoin(chr(random.randint(0,255)) for i in xrange(count))
+    return _bjoin(chr(random.randint(0,255)) for i in range(count))
 
 #NOTE: PBKDF2 hash is using this variant of base64 to minimize encoding size,
 #      and have charset that's compatible w/ unix crypt variants
@@ -69,11 +69,11 @@ def _pbkdf2(password, salt, rounds, keylen):
         total_blocks = int((keylen+digest_size-1)/digest_size)
         hmac_template = HMAC(password, None, sha1)
         out = _bempty
-        for i in xrange(1, total_blocks+1):
+        for i in range(1, total_blocks+1):
             hmac = hmac_template.copy()
             hmac.update(salt + pack(">L",i))
             block = tmp = hmac.digest()
-            for j in xrange(rounds-1):
+            for j in range(rounds-1):
                 hmac = hmac_template.copy()
                 hmac.update(tmp)
                 tmp = hmac.digest()