Index: python-numpy/numpy/numarray/functions.py
===================================================================
--- python-numpy.orig/numpy/numarray/functions.py	2011-01-11 11:20:24.582283357 -0500
+++ python-numpy/numpy/numarray/functions.py	2011-01-11 11:22:06.513172853 -0500
@@ -214,7 +214,7 @@
     ##quick -- only one allocation will be needed.
 
     recsize = dtype.itemsize * np.product([i for i in shape if i != -1])
-    blocksize = max(_BLOCKSIZE/recsize, 1)*recsize
+    blocksize = int(max(_BLOCKSIZE/recsize, 1)*recsize)
 
     ##try to estimate file size
     try:
@@ -225,7 +225,7 @@
     except (AttributeError, IOError):
         initsize=blocksize
     else:
-        initsize=max(1,(endpos-curpos)/recsize)*recsize
+        initsize = int(max(1,(endpos-curpos)/recsize)*recsize)
 
     buf = np.newbuffer(initsize)
 
@@ -256,7 +256,7 @@
         except IOError:
             _warnings.warn("Could not rewind (IOError in seek)",
                            FileSeekWarning)
-    datasize = (len(data)/recsize) * recsize
+    datasize = int((len(data)/recsize) * recsize)
     if len(buf) != bytesread+datasize:
         buf=_resizebuf(buf,bytesread+datasize)
     buf[bytesread:bytesread+datasize]=data[:datasize]
@@ -270,6 +270,19 @@
         np.not_equal(a, 0, a)
     return a
 
+
+# this function is referenced in the code above but not defined.  adding
+# it back. - phensley
+def _resizebuf(buf,newsize):
+    "Return a copy of BUF of size NEWSIZE."
+    newbuf = np.newbuffer(newsize)
+    if newsize > len(buf):
+        newbuf[:len(buf)]=buf
+    else:
+        newbuf[:]=buf[:len(newbuf)]
+    return newbuf
+
+
 def fromstring(datastring, type=None, shape=None, typecode=None, dtype=None):
     dtype = type2dtype(typecode, type, dtype, True)
     if shape is None: