numpy.lib.format.read_array

lib.format.read_array(fp, allow_pickle=False, pickle_kwargs=None, *, max_header_size=10000)[source]

Read an array from an NPY file.

Parameters:

fpfile_like object

If this is not a real file object, then this may take extra memory and time.

allow_picklebool, optional

Whether to allow writing pickled data. Default: False

pickle_kwargsdict

Additional keyword arguments to pass to pickle.load. These are only useful when loading object arrays saved on Python 2.

max_header_sizeint, optional

Maximum allowed size of the header. Large headers may not be safe to load securely and thus require explicitly passing a larger value. See ast.literal_eval for details. This option is ignored when allow_pickle is passed. In that case the file is by definition trusted and the limit is unnecessary.

Returns:

arrayndarray

The array from the data on disk.

Raises:

ValueError

If the data is invalid, or allow_pickle=False and the file contains an object array.