bytes.partition(sep) bytearray.partition(sep) Split the sequence at the first occurrence of sep, and return a 3-tuple containing the part before the separator, the separator, and the part after the separator. If the separator is not found, return a 3-tuple containing a copy of the original sequence, followed by two empty bytes or bytearray objects. The separator to search for may be any bytes-like object.

operator.length_hint(obj, default=0) Return an estimated length for the object o. First try to return its actual length, then an estimate using object.__length_hint__(), and finally return the default value. New in version 3.4.

HMAC.update(msg) Update the hmac object with msg. Repeated calls are equivalent to a single call with the concatenation of all the arguments: m.update(a); m.update(b) is equivalent to m.update(a + b). Changed in version 3.4: Parameter msg can be of any type supported by hashlib.

check_returncode() If returncode is non-zero, raise a CalledProcessError.

os.major(device) Extract the device major number from a raw device number (usually the st_dev or st_rdev field from stat).

dis.cmp_op Sequence of all compare operation names.

importlib.__import__(name, globals=None, locals=None, fromlist=(), level=0) An implementation of the built-in __import__() function. Note Programmatic importing of modules should use import_module() instead of this function.

curses.ascii.isxdigit(c) Checks for an ASCII hexadecimal digit. This is equivalent to c in string.hexdigits.

Handler.release() Releases the thread lock acquired with acquire().

webbrowser.open_new_tab(url) Open url in a new page (“tab”) of the default browser, if possible, otherwise equivalent to open_new().