Added imports to resolve Sphinx namespace errors.

Author: ZviBaratz

nibabel/batteryrunners.py

@@ -20,6 +20,7 @@
 
 To run checks only, and return problem report objects:
 
+>>> from nibabel.batteryrunners import BatteryRunner
 >>> def chk(obj, fix=False): # minimal check
 ...     return obj, Report()
 >>> btrun = BatteryRunner((chk,))

nibabel/quaternions.py

@@ -19,6 +19,7 @@
 they are applied on the left of the vector.  For example:
 
 >>> import numpy as np
+>>> from nibabel.quaternions import quat2mat
 >>> q = [0, 1, 0, 0] # 180 degree rotation around axis 0
 >>> M = quat2mat(q) # from this module
 >>> vec = np.array([1, 2, 3]).reshape((3,1)) # column vector

nibabel/spatialimages.py

@@ -91,6 +91,7 @@
 example, the Analyze data format needs an ``image`` and a ``header``
 file type for storage:
 
+   >>> import numpy as np
    >>> import nibabel as nib
    >>> data = np.arange(24, dtype='f4').reshape((2,3,4))
    >>> img = nib.AnalyzeImage(data, np.eye(4))