Function isfileobj

numpy/compat/py3k.py:49–58

(f)

    return str(s)

def isfileobj(f):
    if not isinstance(f, (io.FileIO, io.BufferedReader, io.BufferedWriter)):
        return False
    try:
        # BufferedReader/Writer may raise OSError when
        # fetching `fileno()` (e.g. when wrapping BytesIO).
        f.fileno()
        return True
    except OSError:
        return False

def open_latin1(filename, mode='r'):
    return open(filename, mode=mode, encoding='iso-8859-1')