tidy up

Author: alimanfoo

numcodecs/delta.py

@@ -57,7 +57,7 @@ def __init__(self, dtype, astype=None):
     def encode(self, buf):
 
         # view input data as 1D array
-        arr = ensure_ndarray_from_memory(buf).reshape(-1, order='A').view(self.dtype)
+        arr = ensure_ndarray_from_memory(buf).view(self.dtype)
 
         # setup encoded output
         enc = np.empty_like(arr, dtype=self.astype)
@@ -73,7 +73,7 @@ def encode(self, buf):
     def decode(self, buf, out=None):
 
         # view encoded data as 1D array
-        enc = ensure_ndarray_from_memory(buf).reshape(-1, order='A').view(self.astype)
+        enc = ensure_ndarray_from_memory(buf).view(self.astype)
 
         # setup decoded output
         if isinstance(out, np.ndarray):

numcodecs/packbits.py

@@ -40,7 +40,7 @@ def __init__(self):
     def encode(self, buf):
 
         # view input as ndarray
-        arr = ensure_ndarray_from_memory(buf).reshape(-1, order='A').view(bool)
+        arr = ensure_ndarray_from_memory(buf).view(bool)
 
         # determine size of packed data
         n = arr.size
@@ -67,7 +67,7 @@ def encode(self, buf):
     def decode(self, buf, out=None):
 
         # view encoded data as ndarray
-        enc = ensure_ndarray_from_memory(buf).reshape(-1, order='A').view('u1')
+        enc = ensure_ndarray_from_memory(buf).view('u1')
 
         # find out how many bits were padded
         n_bits_padded = int(enc[0])

numcodecs/zlib.py

@@ -28,6 +28,7 @@ def encode(self, buf):
 
         # normalise inputs
         if PY2:  # pragma: py3 no cover
+            # zlib does not like memoryviews on PY2, use old-style buffer instead
             buf = ensure_buffer(buf)
         else:  # pragma: py2 no cover
             buf = ensure_memoryview(buf)
@@ -40,6 +41,7 @@ def decode(self, buf, out=None):
 
         # normalise inputs
         if PY2:  # pragma: py3 no cover
+            # zlib does not like memoryviews on PY2, use old-style buffer instead
             buf = ensure_buffer(buf)
         else:  # pragma: py2 no cover
             buf = ensure_memoryview(buf)