remove NoCompressor

Author: alimanfoo

docs/tutorial.rst

@@ -236,6 +236,8 @@ the delta filter::
 
 To disable compression, set ``compressor=None`` when creating an array.
 
+To disable compression, set ``compression=None`` when creating an array.
+
 .. _tutorial_sync:
 
 Filters

zarr/core.py

@@ -729,10 +729,11 @@ def __repr__(self):
 
         # storage size info
         r += '\n  nbytes: %s' % human_readable_size(self.nbytes)
-        if self.nbytes_stored > 0:
-            r += '; nbytes_stored: %s' % human_readable_size(
-                self.nbytes_stored)
-            r += '; ratio: %.1f' % (self.nbytes / self.nbytes_stored)
+        if self.compression:
+            if self.nbytes_stored > 0:
+                r += '; nbytes_stored: %s' % human_readable_size(
+                    self.nbytes_stored)
+                r += '; ratio: %.1f' % (self.nbytes / self.nbytes_stored)
         n_chunks = reduce(operator.mul, self.cdata_shape)
         r += '; initialized: %s/%s' % (self.initialized, n_chunks)
 

zarr/tests/test_filters.py

@@ -21,6 +21,7 @@
     BZ2(),
     Blosc(),
 ]
+
 if not PY2:
     from zarr.codecs import LZMA
     compressors.append(LZMA())