numpy.savez_compressed — NumPy v2.2 Manual (original) (raw)

numpy.savez_compressed(file, *args, allow_pickle=True, **kwds)[source]#

Save several arrays into a single file in compressed .npz format.

Provide arrays as keyword arguments to store them under the corresponding name in the output file: savez_compressed(fn, x=x, y=y).

If arrays are specified as positional arguments, i.e.,savez_compressed(fn, x, y), their names will be arr_0, arr_1, etc.

Parameters:

filefile, str, or pathlib.Path

Either the filename (string) or an open file (file-like object) where the data will be saved. If file is a string or a Path, the.npz extension will be appended to the filename if it is not already there.

argsArguments, optional

Arrays to save to the file. Please use keyword arguments (see_kwds_ below) to assign names to arrays. Arrays specified as args will be named “arr_0”, “arr_1”, and so on.

allow_picklebool, optional

Allow saving object arrays using Python pickles. Reasons for disallowing pickles include security (loading pickled data can execute arbitrary code) and portability (pickled objects may not be loadable on different Python installations, for example if the stored objects require libraries that are not available, and not all pickled data is compatible between different versions of Python). Default: True

kwdsKeyword arguments, optional

Arrays to save to the file. Each array will be saved to the output file with its corresponding keyword name.

Returns:

None