diff options
Diffstat (limited to 'numpy/core/_internal.py')
| -rw-r--r-- | numpy/core/_internal.py | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/numpy/core/_internal.py b/numpy/core/_internal.py index 29d21a9bc..88a41fd0d 100644 --- a/numpy/core/_internal.py +++ b/numpy/core/_internal.py @@ -286,26 +286,17 @@ def _newnames(datatype, order): # construct a new array with just those fields copied over def _index_fields(ary, fields): from multiarray import empty, dtype + from numpy import copy dt = ary.dtype - new_dtype = [(name, dt[name]) for name in fields if name in dt.names] - if ary.flags.f_contiguous: - order = 'F' - else: - order = 'C' - - newarray = empty(ary.shape, dtype=new_dtype, order=order) - - for name in fields: - newarray[name] = ary[name] names = [name for name in fields if name in dt.names] - formats = dt.fields[name][0] for name in fields if name in dt.names] + formats = [dt.fields[name][0] for name in fields if name in dt.names] offsets = [dt.fields[name][1] for name in fields if name in dt.names] - view_dtype = {'names':names, 'formats':formats, 'offsets':offsets} + view_dtype = {'names':names, 'formats':formats, 'offsets':offsets, 'itemsize':dt.itemsize} view = ary.view(dtype=view_dtype) - return newarray + return copy(view) # Given a string containing a PEP 3118 format specifier, # construct a Numpy dtype |