zarr-developers · alimanfoo · Nov 27, 2017 · Nov 27, 2017 · Nov 27, 2017
diff --git a/fixture/blosc/array.05.npy b/fixture/blosc/array.05.npy
diff --git a/fixture/blosc/array.06.npy b/fixture/blosc/array.06.npy
diff --git a/fixture/blosc/array.07.npy b/fixture/blosc/array.07.npy
diff --git a/fixture/blosc/array.08.npy b/fixture/blosc/array.08.npy
diff --git a/fixture/blosc/codec.00/encoded.05.dat b/fixture/blosc/codec.00/encoded.05.dat
diff --git a/fixture/blosc/codec.00/encoded.06.dat b/fixture/blosc/codec.00/encoded.06.dat
diff --git a/fixture/blosc/codec.00/encoded.07.dat b/fixture/blosc/codec.00/encoded.07.dat
diff --git a/fixture/blosc/codec.00/encoded.08.dat b/fixture/blosc/codec.00/encoded.08.dat
diff --git a/fixture/blosc/codec.01/encoded.05.dat b/fixture/blosc/codec.01/encoded.05.dat
diff --git a/fixture/blosc/codec.01/encoded.06.dat b/fixture/blosc/codec.01/encoded.06.dat
diff --git a/fixture/blosc/codec.01/encoded.07.dat b/fixture/blosc/codec.01/encoded.07.dat
diff --git a/fixture/blosc/codec.01/encoded.08.dat b/fixture/blosc/codec.01/encoded.08.dat
diff --git a/fixture/blosc/codec.02/encoded.05.dat b/fixture/blosc/codec.02/encoded.05.dat
diff --git a/fixture/blosc/codec.02/encoded.06.dat b/fixture/blosc/codec.02/encoded.06.dat
diff --git a/fixture/blosc/codec.02/encoded.07.dat b/fixture/blosc/codec.02/encoded.07.dat
diff --git a/fixture/blosc/codec.02/encoded.08.dat b/fixture/blosc/codec.02/encoded.08.dat
diff --git a/fixture/blosc/codec.03/encoded.05.dat b/fixture/blosc/codec.03/encoded.05.dat
diff --git a/fixture/blosc/codec.03/encoded.06.dat b/fixture/blosc/codec.03/encoded.06.dat
diff --git a/fixture/blosc/codec.03/encoded.07.dat b/fixture/blosc/codec.03/encoded.07.dat
diff --git a/fixture/blosc/codec.03/encoded.08.dat b/fixture/blosc/codec.03/encoded.08.dat
diff --git a/fixture/blosc/codec.04/encoded.05.dat b/fixture/blosc/codec.04/encoded.05.dat
diff --git a/fixture/blosc/codec.04/encoded.06.dat b/fixture/blosc/codec.04/encoded.06.dat
diff --git a/fixture/blosc/codec.04/encoded.07.dat b/fixture/blosc/codec.04/encoded.07.dat
diff --git a/fixture/blosc/codec.04/encoded.08.dat b/fixture/blosc/codec.04/encoded.08.dat
diff --git a/fixture/blosc/codec.05/encoded.05.dat b/fixture/blosc/codec.05/encoded.05.dat
diff --git a/fixture/blosc/codec.05/encoded.06.dat b/fixture/blosc/codec.05/encoded.06.dat
diff --git a/fixture/blosc/codec.05/encoded.07.dat b/fixture/blosc/codec.05/encoded.07.dat
diff --git a/fixture/blosc/codec.05/encoded.08.dat b/fixture/blosc/codec.05/encoded.08.dat
diff --git a/fixture/blosc/codec.06/encoded.05.dat b/fixture/blosc/codec.06/encoded.05.dat
diff --git a/fixture/blosc/codec.06/encoded.06.dat b/fixture/blosc/codec.06/encoded.06.dat
diff --git a/fixture/blosc/codec.06/encoded.07.dat b/fixture/blosc/codec.06/encoded.07.dat
diff --git a/fixture/blosc/codec.06/encoded.08.dat b/fixture/blosc/codec.06/encoded.08.dat
diff --git a/fixture/blosc/codec.07/encoded.05.dat b/fixture/blosc/codec.07/encoded.05.dat
diff --git a/fixture/blosc/codec.07/encoded.06.dat b/fixture/blosc/codec.07/encoded.06.dat
diff --git a/fixture/blosc/codec.07/encoded.07.dat b/fixture/blosc/codec.07/encoded.07.dat
diff --git a/fixture/blosc/codec.07/encoded.08.dat b/fixture/blosc/codec.07/encoded.08.dat
diff --git a/fixture/blosc/codec.08/encoded.05.dat b/fixture/blosc/codec.08/encoded.05.dat
diff --git a/fixture/blosc/codec.08/encoded.06.dat b/fixture/blosc/codec.08/encoded.06.dat
diff --git a/fixture/blosc/codec.08/encoded.07.dat b/fixture/blosc/codec.08/encoded.07.dat
diff --git a/fixture/blosc/codec.08/encoded.08.dat b/fixture/blosc/codec.08/encoded.08.dat
diff --git a/fixture/blosc/codec.09/encoded.05.dat b/fixture/blosc/codec.09/encoded.05.dat
diff --git a/fixture/blosc/codec.09/encoded.06.dat b/fixture/blosc/codec.09/encoded.06.dat
diff --git a/fixture/blosc/codec.09/encoded.07.dat b/fixture/blosc/codec.09/encoded.07.dat
diff --git a/fixture/blosc/codec.09/encoded.08.dat b/fixture/blosc/codec.09/encoded.08.dat
diff --git a/fixture/blosc/codec.10/encoded.05.dat b/fixture/blosc/codec.10/encoded.05.dat
diff --git a/fixture/blosc/codec.10/encoded.06.dat b/fixture/blosc/codec.10/encoded.06.dat
diff --git a/fixture/blosc/codec.10/encoded.07.dat b/fixture/blosc/codec.10/encoded.07.dat
diff --git a/fixture/blosc/codec.10/encoded.08.dat b/fixture/blosc/codec.10/encoded.08.dat
diff --git a/fixture/blosc/codec.11/encoded.05.dat b/fixture/blosc/codec.11/encoded.05.dat
diff --git a/fixture/blosc/codec.11/encoded.06.dat b/fixture/blosc/codec.11/encoded.06.dat
diff --git a/fixture/blosc/codec.11/encoded.07.dat b/fixture/blosc/codec.11/encoded.07.dat
diff --git a/fixture/blosc/codec.11/encoded.08.dat b/fixture/blosc/codec.11/encoded.08.dat
diff --git a/fixture/blosc/codec.12/encoded.05.dat b/fixture/blosc/codec.12/encoded.05.dat
diff --git a/fixture/blosc/codec.12/encoded.06.dat b/fixture/blosc/codec.12/encoded.06.dat
diff --git a/fixture/blosc/codec.12/encoded.07.dat b/fixture/blosc/codec.12/encoded.07.dat
diff --git a/fixture/blosc/codec.12/encoded.08.dat b/fixture/blosc/codec.12/encoded.08.dat
diff --git a/fixture/bz2/array.05.npy b/fixture/bz2/array.05.npy
diff --git a/fixture/bz2/array.06.npy b/fixture/bz2/array.06.npy
diff --git a/fixture/bz2/array.07.npy b/fixture/bz2/array.07.npy
diff --git a/fixture/bz2/array.08.npy b/fixture/bz2/array.08.npy
diff --git a/fixture/bz2/codec.00/encoded.05.dat b/fixture/bz2/codec.00/encoded.05.dat
diff --git a/fixture/bz2/codec.00/encoded.06.dat b/fixture/bz2/codec.00/encoded.06.dat
diff --git a/fixture/bz2/codec.00/encoded.07.dat b/fixture/bz2/codec.00/encoded.07.dat
diff --git a/fixture/bz2/codec.00/encoded.08.dat b/fixture/bz2/codec.00/encoded.08.dat
diff --git a/fixture/bz2/codec.01/encoded.05.dat b/fixture/bz2/codec.01/encoded.05.dat
diff --git a/fixture/bz2/codec.01/encoded.06.dat b/fixture/bz2/codec.01/encoded.06.dat
diff --git a/fixture/bz2/codec.01/encoded.07.dat b/fixture/bz2/codec.01/encoded.07.dat
diff --git a/fixture/bz2/codec.01/encoded.08.dat b/fixture/bz2/codec.01/encoded.08.dat
diff --git a/fixture/bz2/codec.02/encoded.05.dat b/fixture/bz2/codec.02/encoded.05.dat
diff --git a/fixture/bz2/codec.02/encoded.06.dat b/fixture/bz2/codec.02/encoded.06.dat
diff --git a/fixture/bz2/codec.02/encoded.07.dat b/fixture/bz2/codec.02/encoded.07.dat
diff --git a/fixture/bz2/codec.02/encoded.08.dat b/fixture/bz2/codec.02/encoded.08.dat
diff --git a/fixture/bz2/codec.03/encoded.05.dat b/fixture/bz2/codec.03/encoded.05.dat
diff --git a/fixture/bz2/codec.03/encoded.06.dat b/fixture/bz2/codec.03/encoded.06.dat
diff --git a/fixture/bz2/codec.03/encoded.07.dat b/fixture/bz2/codec.03/encoded.07.dat
diff --git a/fixture/bz2/codec.03/encoded.08.dat b/fixture/bz2/codec.03/encoded.08.dat
diff --git a/fixture/lz4/array.05.npy b/fixture/lz4/array.05.npy
diff --git a/fixture/lz4/array.06.npy b/fixture/lz4/array.06.npy
diff --git a/fixture/lz4/array.07.npy b/fixture/lz4/array.07.npy
diff --git a/fixture/lz4/array.08.npy b/fixture/lz4/array.08.npy
diff --git a/fixture/lz4/codec.00/encoded.05.dat b/fixture/lz4/codec.00/encoded.05.dat
diff --git a/fixture/lz4/codec.00/encoded.06.dat b/fixture/lz4/codec.00/encoded.06.dat
diff --git a/fixture/lz4/codec.00/encoded.07.dat b/fixture/lz4/codec.00/encoded.07.dat
diff --git a/fixture/lz4/codec.00/encoded.08.dat b/fixture/lz4/codec.00/encoded.08.dat
diff --git a/fixture/lz4/codec.01/encoded.05.dat b/fixture/lz4/codec.01/encoded.05.dat
diff --git a/fixture/lz4/codec.01/encoded.06.dat b/fixture/lz4/codec.01/encoded.06.dat
diff --git a/fixture/lz4/codec.01/encoded.07.dat b/fixture/lz4/codec.01/encoded.07.dat
diff --git a/fixture/lz4/codec.01/encoded.08.dat b/fixture/lz4/codec.01/encoded.08.dat
diff --git a/fixture/lz4/codec.02/encoded.05.dat b/fixture/lz4/codec.02/encoded.05.dat
diff --git a/fixture/lz4/codec.02/encoded.06.dat b/fixture/lz4/codec.02/encoded.06.dat
diff --git a/fixture/lz4/codec.02/encoded.07.dat b/fixture/lz4/codec.02/encoded.07.dat
diff --git a/fixture/lz4/codec.02/encoded.08.dat b/fixture/lz4/codec.02/encoded.08.dat
diff --git a/fixture/lz4/codec.03/encoded.05.dat b/fixture/lz4/codec.03/encoded.05.dat
diff --git a/fixture/lz4/codec.03/encoded.06.dat b/fixture/lz4/codec.03/encoded.06.dat
diff --git a/fixture/lz4/codec.03/encoded.07.dat b/fixture/lz4/codec.03/encoded.07.dat
diff --git a/fixture/lz4/codec.03/encoded.08.dat b/fixture/lz4/codec.03/encoded.08.dat
diff --git a/fixture/lz4/codec.04/encoded.05.dat b/fixture/lz4/codec.04/encoded.05.dat
diff --git a/fixture/lz4/codec.04/encoded.06.dat b/fixture/lz4/codec.04/encoded.06.dat
diff --git a/fixture/lz4/codec.04/encoded.07.dat b/fixture/lz4/codec.04/encoded.07.dat
diff --git a/fixture/lz4/codec.04/encoded.08.dat b/fixture/lz4/codec.04/encoded.08.dat
diff --git a/fixture/lz4/codec.05/encoded.05.dat b/fixture/lz4/codec.05/encoded.05.dat
diff --git a/fixture/lz4/codec.05/encoded.06.dat b/fixture/lz4/codec.05/encoded.06.dat
diff --git a/fixture/lz4/codec.05/encoded.07.dat b/fixture/lz4/codec.05/encoded.07.dat
diff --git a/fixture/lz4/codec.05/encoded.08.dat b/fixture/lz4/codec.05/encoded.08.dat
diff --git a/fixture/lz4/codec.06/encoded.05.dat b/fixture/lz4/codec.06/encoded.05.dat
diff --git a/fixture/lz4/codec.06/encoded.06.dat b/fixture/lz4/codec.06/encoded.06.dat
diff --git a/fixture/lz4/codec.06/encoded.07.dat b/fixture/lz4/codec.06/encoded.07.dat
diff --git a/fixture/lz4/codec.06/encoded.08.dat b/fixture/lz4/codec.06/encoded.08.dat
diff --git a/fixture/lzma/array.05.npy b/fixture/lzma/array.05.npy
diff --git a/fixture/lzma/array.06.npy b/fixture/lzma/array.06.npy
diff --git a/fixture/lzma/array.07.npy b/fixture/lzma/array.07.npy
diff --git a/fixture/lzma/array.08.npy b/fixture/lzma/array.08.npy
diff --git a/fixture/lzma/codec.00/encoded.05.dat b/fixture/lzma/codec.00/encoded.05.dat
diff --git a/fixture/lzma/codec.00/encoded.06.dat b/fixture/lzma/codec.00/encoded.06.dat
diff --git a/fixture/lzma/codec.00/encoded.07.dat b/fixture/lzma/codec.00/encoded.07.dat
diff --git a/fixture/lzma/codec.00/encoded.08.dat b/fixture/lzma/codec.00/encoded.08.dat
diff --git a/fixture/lzma/codec.01/encoded.05.dat b/fixture/lzma/codec.01/encoded.05.dat
diff --git a/fixture/lzma/codec.01/encoded.06.dat b/fixture/lzma/codec.01/encoded.06.dat
diff --git a/fixture/lzma/codec.01/encoded.07.dat b/fixture/lzma/codec.01/encoded.07.dat
diff --git a/fixture/lzma/codec.01/encoded.08.dat b/fixture/lzma/codec.01/encoded.08.dat
diff --git a/fixture/lzma/codec.02/encoded.05.dat b/fixture/lzma/codec.02/encoded.05.dat
diff --git a/fixture/lzma/codec.02/encoded.06.dat b/fixture/lzma/codec.02/encoded.06.dat
diff --git a/fixture/lzma/codec.02/encoded.07.dat b/fixture/lzma/codec.02/encoded.07.dat
diff --git a/fixture/lzma/codec.02/encoded.08.dat b/fixture/lzma/codec.02/encoded.08.dat
diff --git a/fixture/lzma/codec.03/encoded.05.dat b/fixture/lzma/codec.03/encoded.05.dat
diff --git a/fixture/lzma/codec.03/encoded.06.dat b/fixture/lzma/codec.03/encoded.06.dat
diff --git a/fixture/lzma/codec.03/encoded.07.dat b/fixture/lzma/codec.03/encoded.07.dat
diff --git a/fixture/lzma/codec.03/encoded.08.dat b/fixture/lzma/codec.03/encoded.08.dat
diff --git a/fixture/lzma/codec.04/encoded.05.dat b/fixture/lzma/codec.04/encoded.05.dat
diff --git a/fixture/lzma/codec.04/encoded.06.dat b/fixture/lzma/codec.04/encoded.06.dat
diff --git a/fixture/lzma/codec.04/encoded.07.dat b/fixture/lzma/codec.04/encoded.07.dat
diff --git a/fixture/lzma/codec.04/encoded.08.dat b/fixture/lzma/codec.04/encoded.08.dat
diff --git a/fixture/zlib/array.05.npy b/fixture/zlib/array.05.npy
diff --git a/fixture/zlib/array.06.npy b/fixture/zlib/array.06.npy
diff --git a/fixture/zlib/array.07.npy b/fixture/zlib/array.07.npy
diff --git a/fixture/zlib/array.08.npy b/fixture/zlib/array.08.npy
diff --git a/fixture/zlib/codec.00/encoded.05.dat b/fixture/zlib/codec.00/encoded.05.dat
diff --git a/fixture/zlib/codec.00/encoded.06.dat b/fixture/zlib/codec.00/encoded.06.dat
diff --git a/fixture/zlib/codec.00/encoded.07.dat b/fixture/zlib/codec.00/encoded.07.dat
diff --git a/fixture/zlib/codec.00/encoded.08.dat b/fixture/zlib/codec.00/encoded.08.dat
diff --git a/fixture/zlib/codec.01/encoded.05.dat b/fixture/zlib/codec.01/encoded.05.dat
diff --git a/fixture/zlib/codec.01/encoded.06.dat b/fixture/zlib/codec.01/encoded.06.dat
diff --git a/fixture/zlib/codec.01/encoded.07.dat b/fixture/zlib/codec.01/encoded.07.dat
diff --git a/fixture/zlib/codec.01/encoded.08.dat b/fixture/zlib/codec.01/encoded.08.dat
diff --git a/fixture/zlib/codec.02/encoded.05.dat b/fixture/zlib/codec.02/encoded.05.dat
diff --git a/fixture/zlib/codec.02/encoded.06.dat b/fixture/zlib/codec.02/encoded.06.dat
diff --git a/fixture/zlib/codec.02/encoded.07.dat b/fixture/zlib/codec.02/encoded.07.dat
diff --git a/fixture/zlib/codec.02/encoded.08.dat b/fixture/zlib/codec.02/encoded.08.dat
diff --git a/fixture/zlib/codec.03/encoded.05.dat b/fixture/zlib/codec.03/encoded.05.dat
diff --git a/fixture/zlib/codec.03/encoded.06.dat b/fixture/zlib/codec.03/encoded.06.dat
diff --git a/fixture/zlib/codec.03/encoded.07.dat b/fixture/zlib/codec.03/encoded.07.dat
diff --git a/fixture/zlib/codec.03/encoded.08.dat b/fixture/zlib/codec.03/encoded.08.dat
diff --git a/fixture/zlib/codec.04/encoded.05.dat b/fixture/zlib/codec.04/encoded.05.dat
diff --git a/fixture/zlib/codec.04/encoded.06.dat b/fixture/zlib/codec.04/encoded.06.dat
diff --git a/fixture/zlib/codec.04/encoded.07.dat b/fixture/zlib/codec.04/encoded.07.dat
diff --git a/fixture/zlib/codec.04/encoded.08.dat b/fixture/zlib/codec.04/encoded.08.dat
diff --git a/fixture/zlib/codec.05/encoded.05.dat b/fixture/zlib/codec.05/encoded.05.dat
diff --git a/fixture/zlib/codec.05/encoded.06.dat b/fixture/zlib/codec.05/encoded.06.dat
diff --git a/fixture/zlib/codec.05/encoded.07.dat b/fixture/zlib/codec.05/encoded.07.dat
diff --git a/fixture/zlib/codec.05/encoded.08.dat b/fixture/zlib/codec.05/encoded.08.dat
diff --git a/fixture/zstd/array.05.npy b/fixture/zstd/array.05.npy
diff --git a/fixture/zstd/array.06.npy b/fixture/zstd/array.06.npy
diff --git a/fixture/zstd/array.07.npy b/fixture/zstd/array.07.npy
diff --git a/fixture/zstd/array.08.npy b/fixture/zstd/array.08.npy
diff --git a/fixture/zstd/codec.00/encoded.05.dat b/fixture/zstd/codec.00/encoded.05.dat
diff --git a/fixture/zstd/codec.00/encoded.06.dat b/fixture/zstd/codec.00/encoded.06.dat
diff --git a/fixture/zstd/codec.00/encoded.07.dat b/fixture/zstd/codec.00/encoded.07.dat
diff --git a/fixture/zstd/codec.00/encoded.08.dat b/fixture/zstd/codec.00/encoded.08.dat
diff --git a/fixture/zstd/codec.01/encoded.05.dat b/fixture/zstd/codec.01/encoded.05.dat
diff --git a/fixture/zstd/codec.01/encoded.06.dat b/fixture/zstd/codec.01/encoded.06.dat
diff --git a/fixture/zstd/codec.01/encoded.07.dat b/fixture/zstd/codec.01/encoded.07.dat
diff --git a/fixture/zstd/codec.01/encoded.08.dat b/fixture/zstd/codec.01/encoded.08.dat
diff --git a/fixture/zstd/codec.02/encoded.05.dat b/fixture/zstd/codec.02/encoded.05.dat
diff --git a/fixture/zstd/codec.02/encoded.06.dat b/fixture/zstd/codec.02/encoded.06.dat
diff --git a/fixture/zstd/codec.02/encoded.07.dat b/fixture/zstd/codec.02/encoded.07.dat
diff --git a/fixture/zstd/codec.02/encoded.08.dat b/fixture/zstd/codec.02/encoded.08.dat
diff --git a/fixture/zstd/codec.03/encoded.05.dat b/fixture/zstd/codec.03/encoded.05.dat
diff --git a/fixture/zstd/codec.03/encoded.06.dat b/fixture/zstd/codec.03/encoded.06.dat
diff --git a/fixture/zstd/codec.03/encoded.07.dat b/fixture/zstd/codec.03/encoded.07.dat
diff --git a/fixture/zstd/codec.03/encoded.08.dat b/fixture/zstd/codec.03/encoded.08.dat
diff --git a/fixture/zstd/codec.04/encoded.05.dat b/fixture/zstd/codec.04/encoded.05.dat
diff --git a/fixture/zstd/codec.04/encoded.06.dat b/fixture/zstd/codec.04/encoded.06.dat
diff --git a/fixture/zstd/codec.04/encoded.07.dat b/fixture/zstd/codec.04/encoded.07.dat
diff --git a/fixture/zstd/codec.04/encoded.08.dat b/fixture/zstd/codec.04/encoded.08.dat
diff --git a/fixture/zstd/codec.05/encoded.05.dat b/fixture/zstd/codec.05/encoded.05.dat
diff --git a/fixture/zstd/codec.05/encoded.06.dat b/fixture/zstd/codec.05/encoded.06.dat
diff --git a/fixture/zstd/codec.05/encoded.07.dat b/fixture/zstd/codec.05/encoded.07.dat
diff --git a/fixture/zstd/codec.05/encoded.08.dat b/fixture/zstd/codec.05/encoded.08.dat
diff --git a/fixture/zstd/codec.06/encoded.05.dat b/fixture/zstd/codec.06/encoded.05.dat
diff --git a/fixture/zstd/codec.06/encoded.06.dat b/fixture/zstd/codec.06/encoded.06.dat
diff --git a/fixture/zstd/codec.06/encoded.07.dat b/fixture/zstd/codec.06/encoded.07.dat
diff --git a/fixture/zstd/codec.06/encoded.08.dat b/fixture/zstd/codec.06/encoded.08.dat
diff --git a/numcodecs/bz2.py b/numcodecs/bz2.py
@@ -8,7 +8,7 @@
 
 
 from numcodecs.abc import Codec
-from numcodecs.compat import buffer_copy
+from numcodecs.compat import buffer_copy, handle_datetime
 
 
 class BZ2(Codec):
@@ -28,6 +28,9 @@ def __init__(self, level=1):
 
     def encode(self, buf):
 
+        # deal with lack of buffer support for datetime64 and timedelta64
+        buf = handle_datetime(buf)
+
         # if numpy array, can only handle C contiguous directly
         if isinstance(buf, np.ndarray) and not buf.flags.c_contiguous:
             buf = buf.tobytes(order='A')

diff --git a/numcodecs/compat.py b/numcodecs/compat.py
@@ -114,3 +114,9 @@ def ensure_text(l, encoding='utf-8'):
         return l
     else:
         return text_type(l, encoding=encoding)
+
+
+def handle_datetime(buf):
+    if hasattr(buf, 'dtype') and buf.dtype.kind in 'Mm':
+        return buf.view('u8')
+    return buf
diff --git a/numcodecs/compat_ext.c b/numcodecs/compat_ext.c
diff --git a/numcodecs/compat_ext.pyx b/numcodecs/compat_ext.pyx
@@ -14,10 +14,12 @@ PY2 = sys.version_info[0] == 2
 
 
 cdef class Buffer:
-    """Compatibility class to work around fact that array.array does not support new-style buffer
-    interface in PY2."""
+    """Compatibility class to work around fact that array.array does not support
+    new-style buffer interface in PY2."""
 
     def __cinit__(self, obj, flags):
+        if hasattr(obj, 'dtype') and obj.dtype.kind in 'Mm':
+            obj = obj.view('u8')
         if PY2 and isinstance(obj, array.array):
             self.new_buffer = False
             self.arr = obj

diff --git a/numcodecs/lzma.py b/numcodecs/lzma.py
@@ -16,7 +16,7 @@
 
     import numpy as np
     from numcodecs.abc import Codec
-    from numcodecs.compat import buffer_copy
+    from numcodecs.compat import buffer_copy, handle_datetime
 
     # noinspection PyShadowingBuiltins
     class LZMA(Codec):
@@ -48,6 +48,9 @@ def __init__(self, format=1, check=-1, preset=None, filters=None):
 
         def encode(self, buf):
 
+            # deal with lack of buffer support for datetime64 and timedelta64
+            buf = handle_datetime(buf)
+
             # if numpy array, can only handle C contiguous directly
             if isinstance(buf, np.ndarray) and not buf.flags.c_contiguous:
                 buf = buf.tobytes(order='A')

diff --git a/numcodecs/tests/test_blosc.py b/numcodecs/tests/test_blosc.py
@@ -39,7 +39,11 @@
     np.linspace(1000, 1001, 1000, dtype='f8'),
     np.random.normal(loc=1000, scale=1, size=(100, 10)),
     np.random.randint(0, 2, size=1000, dtype=bool).reshape(100, 10, order='F'),
-    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10)
+    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('M8[ns]'),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('m8[ns]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('M8[m]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('m8[m]'),
 ]
 
 

diff --git a/numcodecs/tests/test_bz2.py b/numcodecs/tests/test_bz2.py
@@ -27,7 +27,11 @@
     np.linspace(1000, 1001, 1000, dtype='f8'),
     np.random.normal(loc=1000, scale=1, size=(100, 10)),
     np.random.randint(0, 2, size=1000, dtype=bool).reshape(100, 10, order='F'),
-    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10)
+    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('M8[ns]'),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('m8[ns]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('M8[m]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('m8[m]'),
 ]
 
 

diff --git a/numcodecs/tests/test_lz4.py b/numcodecs/tests/test_lz4.py
@@ -31,7 +31,11 @@
     np.linspace(1000, 1001, 1000, dtype='f8'),
     np.random.normal(loc=1000, scale=1, size=(100, 10)),
     np.random.randint(0, 2, size=1000, dtype=bool).reshape(100, 10, order='F'),
-    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10)
+    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('M8[ns]'),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('m8[ns]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('M8[m]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('m8[m]'),
 ]
 
 

diff --git a/numcodecs/tests/test_lzma.py b/numcodecs/tests/test_lzma.py
@@ -32,7 +32,11 @@
     np.linspace(1000, 1001, 1000, dtype='f8'),
     np.random.normal(loc=1000, scale=1, size=(100, 10)),
     np.random.randint(0, 2, size=1000, dtype=bool).reshape(100, 10, order='F'),
-    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10)
+    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('M8[ns]'),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('m8[ns]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('M8[m]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('m8[m]'),
 ]
 
 

diff --git a/numcodecs/tests/test_zlib.py b/numcodecs/tests/test_zlib.py
@@ -30,7 +30,11 @@
     np.linspace(1000, 1001, 1000, dtype='f8'),
     np.random.normal(loc=1000, scale=1, size=(100, 10)),
     np.random.randint(0, 2, size=1000, dtype=bool).reshape(100, 10, order='F'),
-    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10)
+    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('M8[ns]'),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('m8[ns]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('M8[m]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('m8[m]'),
 ]
 
 

diff --git a/numcodecs/tests/test_zstd.py b/numcodecs/tests/test_zstd.py
@@ -31,7 +31,11 @@
     np.linspace(1000, 1001, 1000, dtype='f8'),
     np.random.normal(loc=1000, scale=1, size=(100, 10)),
     np.random.randint(0, 2, size=1000, dtype=bool).reshape(100, 10, order='F'),
-    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10)
+    np.random.choice([b'a', b'bb', b'ccc'], size=1000).reshape(10, 10, 10),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('M8[ns]'),
+    np.random.randint(0, 2**60, size=1000, dtype='u8').view('m8[ns]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('M8[m]'),
+    np.random.randint(0, 2**25, size=1000, dtype='u8').view('m8[m]'),
 ]
 
 

diff --git a/numcodecs/zlib.py b/numcodecs/zlib.py
@@ -7,7 +7,7 @@
 
 
 from numcodecs.abc import Codec
-from numcodecs.compat import buffer_copy
+from numcodecs.compat import buffer_copy, handle_datetime
 
 
 class Zlib(Codec):
@@ -27,6 +27,9 @@ def __init__(self, level=1):
 
     def encode(self, buf):
 
+        # deal with lack of buffer support for datetime64 and timedelta64
+        buf = handle_datetime(buf)
+
         # if numpy array, can only handle C contiguous directly
         if isinstance(buf, np.ndarray) and not buf.flags.c_contiguous:
             buf = buf.tobytes(order='A')