Some docs bugfixes relating to NDMeta.

docs/explaining_ndcube/metadata.rst

@@ -90,7 +90,7 @@ We can now access each piece of metadata by indexing ``meta`` as if it were a `d
 .. code-block:: python
 
   >>> meta["name"]
-  "world"
+  'world'
 
 In this example we have provided a very simple set of metadata.
 In fact, it is so simple that there is no practical difference between ``meta`` and a simple `dict`.
@@ -108,7 +108,7 @@ We can now access the comments by indexing the `~ndcube.NDMeta.key_comments` pro
 .. code-block:: python
 
   >>> meta.key_comments["name"]
-  "Each planet in the solar system has a name."
+  'Each planet in the solar system has a name.'
 
 Now let's discuss how to initialize how to `~ndcube.NDMeta` with axis-aware metadata.
 (Here, we will specifically consider grid-aligned metadata.  Axis-aligned metadata is assigned in the same way.  But see the :ref:`assigning_axis_aligned_metadata` section for more details.)
@@ -186,17 +186,17 @@ Unwanted metadata can be removing by employing the `del` operator.
 
   >>> del meta["voltage"]
   >>> meta.get("voltage", "deleted")
-  "deleted"
+  'deleted'
 
 Note that the `del` operator also removes associated comments and axes.
 
 .. code-block:: python
 
   >>> del meta["voltage"]
   >>> meta.key_comments.get("voltage", "deleted")
-  "deleted"
+  'deleted'
   >>> meta.axes.get("voltage", "deleted")
-  "deleted"
+  'deleted'
 
 Data Shape
 ----------

docs/explaining_ndcube/slicing.rst

@@ -436,7 +436,7 @@ Therefore, slicing is achieved by applying Python's slicing API to `~ndcube.NDMe
   >>> from ndcube import NDMeta
   >>> raw_meta = {"salutation": "hello", "name": "world",
   ...             "exposure time": u.Quantity([2] * 4, unit=u.s),
-  ...             "pixel response", np.ones((4, 5))}
+  ...             "pixel response": np.ones((4, 5))}
   >>> axes = {"exposure time": 0, "pixel response": (1, 2)}
   >>> meta = NDMeta(raw_meta, axes=axes, data_shape=(4, 4, 5))
 
@@ -466,7 +466,7 @@ Moreover, because the first axis has been sliced away, ``"exposure time"`` is no
 .. code-block:: python
 
   >>> list(sliced_meta.axes.keys())
-  ["pixel response"]
+  ['pixel response']
 
 Finally, note that axis-agnostic metadata is unaltered by the slicing process.
 
@@ -518,8 +518,8 @@ In fact, ``sliced_cube.meta`` is equivalent to ``sliced_meta`` from the previous
   >>> sliced_cube.meta["exposure time"]
   <Quantity 2. s>
   >>> list(sliced_cube.meta.axes.keys())
-  ["pixel response"]
+  ['pixel response']
   >>> sliced_cube.meta["salultation"]
-  "hello"
+  'hello'
   >>> sliced_cube.meta["name"]
-  "world"
+  'world'

ndcube/__init__.py

@@ -15,4 +15,4 @@
 from .ndcube_sequence import NDCubeSequence, NDCubeSequenceBase
 from .version import version as __version__
 
-__all__ = ['NDCube', 'NDCubeSequence', "Meta", "NDCollection", "ExtraCoords", "GlobalCoords", "ExtraCoordsABC", "GlobalCoordsABC", "NDCubeBase", "NDCubeSequenceBase", "__version__"]
+__all__ = ['NDCube', 'NDCubeSequence', "NDCollection", "NDMeta", "ExtraCoords", "GlobalCoords", "ExtraCoordsABC", "GlobalCoordsABC", "NDCubeBase", "NDCubeSequenceBase", "__version__"]