empty A special class-level marker to specify absence of default values and annotations.
sys.__stderr__ These objects contain the original values of stdin, stderr and stdout
arguments An ordered, mutable mapping (
default The default value for the parameter. If the parameter has no default value, this attribute is set to Parameter
sys.int_info A struct sequence that holds information about Python’s internal representation
inspect.getframeinfo(frame, context=1) Get information about a frame or traceback object. A named
inspect.isclass(object) Return true if the object is a class, whether built-in or created in Python code.
inspect.getcallargs(func, *args, **kwds) Bind the args and kwds to the argument names of the Python function
inspect.getclasstree(classes, unique=False) Arrange the given list of classes into a hierarchy of nested lists. Where a nested
sys.getdlopenflags() Return the current value of the flags that are used for dlopen() calls. Symbolic names for
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