File: //proc/2/task/2/root/usr/lib/python2.4/Demo/newmetaclasses/Enum.pyc
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j o e e n d S( s Enumeration metaclass.t
EnumMetaclassc B s) t Z d Z d Z d Z d Z RS( sg Metaclass for enumeration.
To define your own enumeration, do something like
class Color(Enum):
red = 1
green = 2
blue = 3
Now, Color.red, Color.green and Color.blue behave totally
different: they are enumerated values, not integers.
Enumerations cannot be instantiated; however they can be
subclassed.
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isinstanceR t Enumt __name__t enumbasest joinR t valt getattrt
enumvalues( R R" R R R R R R ( ( R t __repr__" s
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__module__t __doc__R R R# ( ( ( R R s t FullEnumMetaclassc B s t Z d Z d Z RS( sn Metaclass for full enumerations.
A full enumeration displays all the values defined in base classes.
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c B s2 t Z d Z d Z d Z d Z d Z RS( s Class to represent an enumeration value.
EnumInstance('Color', 'red', 12) prints as 'Color.red' and behaves
like the integer 12 when compared, but doesn't support arithmetic.
XXX Should it record the actual enumeration rather than just its
name?
c C s t i | | S( N( t intt __new__R t value( R t classnamet enumnameR+ ( ( R R* G s c C s | | _ | | _ d S( N( R, t selft _EnumInstance__classnameR- t _EnumInstance__enumname( R. R, R- R+ ( ( R R J s c C s d | i | i | f S( Ns EnumInstance(%s, %s, %d)( R. R/ R0 ( R. ( ( R R# N s c C s d | i | i f S( Ns %s.%s( R. R/ R0 ( R. ( ( R t __str__R s ( R R$ R% R* R R# R1 ( ( ( R R
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Y} | i GH| i GH| GH| GH| GH| GHd S( Nt Colorc B s t Z d Z d Z d Z RS( Ni i i ( R R$ t redt greent blue( ( ( R R4 ] s i i t
ExtendedColorc B s& t Z d Z d Z d Z d Z d Z RS( Ni i i i i ( R R$ t whitet oranget yellowt purplet black( ( ( R R8 j s
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OtherColorc B s t Z d Z d Z RS( Ni i ( R R$ R9 R7 ( ( ( R R> v s t MergedColorc B s t Z RS( N( R R$ ( ( ( R R? z s (
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Y} | i GH| i GH| GH| GH| GH| GHd S( NR4 c B s t Z d Z d Z d Z RS( Ni i i ( R R$ R5 R6 R7 ( ( ( R R4 s i i R8 c B s& t Z d Z d Z d Z d Z d Z RS( Ni i i i i ( R R$ R9 R: R; R< R= ( ( ( R R8 s
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