Special variables: Difference between revisions

By default, Python starts execution in a namespace which has direct access to names defined in the globals() dict and the __builtins__ dict. The members of which can be found by the following code:

<lang Python>names = sorted((set(globals().keys()) | set(__builtins__.__dict__.keys())) - set('_ names i'.split()))

print( '\n'.join(' '.join(names[i:i+8]) for i in range(0, len(names), 8)) )</lang>

;Output

<pre>ArithmeticError AssertionError AttributeError BaseException BufferError BytesWarning DeprecationWarning EOFError

Ellipsis EnvironmentError Exception False FloatingPointError FutureWarning GeneratorExit IOError

ImportError ImportWarning IndentationError IndexError KeyError KeyboardInterrupt LookupError MemoryError

NameError None NotImplemented NotImplementedError OSError OverflowError PendingDeprecationWarning ReferenceError

ResourceWarning RuntimeError RuntimeWarning StopIteration SyntaxError SyntaxWarning SystemError SystemExit

TabError True TypeError UnboundLocalError UnicodeDecodeError UnicodeEncodeError UnicodeError UnicodeTranslateError

UnicodeWarning UserWarning ValueError Warning WindowsError ZeroDivisionError __build_class__ __builtins__

__debug__ __doc__ __import__ __name__ __package__ abs all any

ascii bin bool bytearray bytes callable chr classmethod

compile complex copyright credits delattr dict dir divmod

enumerate eval exec exit filter float format frozenset

getattr globals hasattr hash help hex id input

int isinstance issubclass iter len license list locals

map max memoryview min next object oct open

ord pow print property quit range repr reversed

round set setattr slice sorted staticmethod str sum

super tuple type vars zip</pre>