Default compression level set to 9.

This is best for solid compressed buffers, like the ones that the
blosc python package is designed to work with (specially medium to
large array pickles).

blosc/toplevel.py

@@ -105,8 +105,8 @@ def free_resources():
     _ext.free_resources()
 
 
-def compress(string, typesize, clevel=5, shuffle=True):
-    """compress(string, typesize[, clevel=5, shuffle=True]])
+def compress(string, typesize, clevel=9, shuffle=True):
+    """compress(string, typesize[, clevel=9, shuffle=True]])
 
     Returns compressed string.
 
@@ -118,7 +118,7 @@ def compress(string, typesize, clevel=5, shuffle=True):
             The data type size.
         clevel : int (optional)
             The compression level from 0 (no compression) to 9
-            (maximum compression).  The default is 5.
+            (maximum compression).  The default is 9.
         shuffle : bool (optional)
             Whether you want to activate the shuffle filter or not.
             The default is True.