Sentinel objects

This instance of PyTypeObject represents the Python sentinel type. This is the same object as sentinel.

3.15

Return true if o is a sentinel object or a subtype. The sentinel type does not currently allow subclasses, so this check is exact. Future Python versions may choose to allow subtyping. This function always succeeds.

3.15

Return true if o is a sentinel object, but not a subtype. The sentinel type does not currently allow subclasses. Future Python versions may choose to allow subtyping. This function always succeeds.

3.15

Return a new sentinel object with ~sentinel.__name__ set to name and ~sentinel.__module__ set to module_name. name must not be NULL. If module_name is NULL, ~sentinel.__module__ is set to None. If repr is NULL, repr() returns ~sentinel.__name__. Return NULL with an exception set on failure.

For pickling to work, module_name must be the name of an importable module, and the sentinel must be accessible from that module under a path matching name. Pickle treats name as a global variable name in module_name (see object.__reduce__).

3.15