RF - rename constants for numeric types

Prefering capitals

Author: matthew-brett

nibabel/analyze.py

@@ -84,8 +84,7 @@
 
 from .volumeutils import (native_code, swapped_code, make_dt_codes,
                           calculate_scale, allopen, shape_zoom_affine,
-                          array_to_file, array_from_file, can_cast,
-                          floating_point_types)
+                          array_to_file, array_from_file, can_cast)
 from .wrapstruct import WrapStruct
 from .spatialimages import (HeaderDataError, HeaderTypeError,
                             SpatialImage)
@@ -489,7 +488,7 @@ def data_from_fileobj(self, fileobj):
         # in-place multiplication and addition on integer types leads to
         # integer output types, and disastrous integer rounding.
         # We'd like to do inplace if we can, to save memory
-        is_flt = data.dtype.type in floating_point_types
+        is_flt = data.dtype.kind in 'fc'
         if slope != 1.0:
             if is_flt:
                 data *= slope

nibabel/volumeutils.py

@@ -31,10 +31,9 @@
 default_compresslevel = 1
 
 #: convenience variables for numpy types
-floating_point_types = (np.sctypes['complex'] +
-                        np.sctypes['float'])
-integer_types = (np.sctypes['int'] + np.sctypes['uint'])
-numeric_types = floating_point_types + integer_types
+CFLOAT_TYPES = np.sctypes['complex'] + np.sctypes['float']
+IUINT_TYPES = np.sctypes['int'] + np.sctypes['uint']
+NUMERIC_TYPES = CFLOAT_TYPES + IUINT_TYPES
 
 
 class Recoder(object):
@@ -799,7 +798,7 @@ def finite_range(arr):
     stride_order = np.argsort(arr.strides)[::-1]
     sarr = arr.transpose(stride_order)
     typ = sarr.dtype.type
-    if typ in integer_types:
+    if typ in IUINT_TYPES:
         return np.min(sarr), np.max(sarr)
     if typ not in np.sctypes['float']:
         raise TypeError('Can only handle floats and (u)ints')