@contextlib.contextmanager This function is a decorator that can be used to define a

warnings.showwarning(message, category, filename, lineno, file=None, line=None) Write a warning to a file. The default implementation

warnings.resetwarnings() Reset the warnings filter. This discards the effect of all previous calls to filterwarnings()

sys.exit([arg]) Exit from Python. This is implemented by raising the

sysconfig.parse_config_h(fp[, vars]) Parse a config.h-style file. fp is

empty A special class-level marker to specify absence of a return annotation.

class contextlib.ContextDecorator A base class that enables a context manager to also be used as a decorator.

traceback.print_exc(limit=None, file=None, chain=True) This is a shorthand for print_exception(*sys.exc_info(), limit

close() Immediately unwinds the callback stack, invoking callbacks in the reverse order of registration. For any context managers

sys.stdout sys.stderr File objects used by the interpreter for standard input