`numpy.rec:fromfile`

source: build-install/usr/lib/python3.14/site-packages/numpy/_core/records.py :836

Signature

   def     fromfile (    fd    ,    dtype    =  None   ,    shape    =  None   ,    offset    =  0   ,    formats    =  None   ,    names    =  None   ,    titles    =  None   ,    aligned    =  False   ,    byteorder    =  None     )

Summary

Create an array from binary file data

Parameters

fd : str or file type: If file is a string or a path-like object then that file is opened, else it is assumed to be a file object. The file object must support random access (i.e. it must have tell and seek methods).
dtype : data-type, optional: valid dtype for all arrays
shape : int or tuple of ints, optional: shape of each array.
offset : int, optional: Position in the file to start reading from.
formats, names, titles, aligned, byteorder: If dtype is None, these arguments are passed to numpy.format_parser to construct a dtype. See that function for detailed documentation

Returns

: np.recarray: record array consisting of data enclosed in file.

Examples

from tempfile import TemporaryFile
a = np.empty(10,dtype='f8,i4,a5')
a[5] = (0.5,10,'abcde')
fd=TemporaryFile()
a = a.view(a.dtype.newbyteorder('<'))
a.tofile(fd)
_ = fd.seek(0)
r=np.rec.fromfile(fd, formats='f8,i4,a5', shape=10,
byteorder='<')
print(r[5])
r.shape

✓

Aliases

numpy.rec.fromfile