`numpy.lib.format:write_array`

source: /numpy/lib/_format_impl.py :702

Signature

   def     write_array (    fp    ,    array    ,    version    =  None   ,    allow_pickle    =  True   ,    pickle_kwargs    =  None     )

Summary

Write an array to an NPY file, including a header.

Extended Summary

If the array is neither C-contiguous nor Fortran-contiguous AND the file_like object is not a real file object, this function will have to copy data in memory.

Parameters

fp : file_like object: An open, writable file object, or similar object with a .write() method.
array : ndarray: The array to write to disk.
version : (int, int) or None, optional: The version number of the format. None means use the oldest supported version that is able to store the data. Default: None
allow_pickle : bool, optional: Whether to allow writing pickled data. Default: True
pickle_kwargs : dict, optional: Additional keyword arguments to pass to pickle.dump, excluding 'protocol'. These are only useful when pickling objects in object arrays to Python 2 compatible format.

Raises

: ValueError: If the array cannot be persisted. This includes the case of allow_pickle=False and array being an object array.
: Various other errors: If the array contains Python objects as part of its dtype, the process of pickling them may raise various errors if the objects are not picklable.

Aliases

numpy.lib._format_impl.write_array