gc.set_debug(flags) Set the garbage collection debugging flags. Debugging information will be written to sys.stderr

inspect.isgeneratorfunction(object) Return true if the object is a Python generator function.

classmethod from_list(a_list) Construct a StackSummary object from a supplied old-style list of tuples. Each tuple

Source code: Lib/__future__

sys.version A string containing the version number of the Python interpreter plus additional information on the build number

sys._getframe([depth]) Return a frame object from the call stack. If optional integer depth is given, return the frame

exc_type The class of the original traceback.

sys._clear_type_cache() Clear the internal type cache. The type cache is used to speed up attribute and method lookups. Use

abc.get_cache_token() Returns the current abstract base class cache token. The token is an opaque

gc.collect(generations=2) With no arguments, run a full collection. The optional argument generation may be an integer