/usr/lib64/python2.6/Demo/classes
Edit: /usr/lib64/python2.6/Demo/classes/Range.pyo (4123B)
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« gc @ sP d Z d „ Z d „ Z d d d „ ƒ YZ d „ Z e d j o e ƒ n d S( s Example of a generator: re-implement the built-in range function
without actually constructing the list of values.
OldStyleRange is coded in the way required to work in a 'for' loop before
iterators were introduced into the language; using __getitem__ and __len__ .
c C sè y t | ƒ d j o d t | d ƒ d f St | ƒ d j o" t | d ƒ t | d ƒ d f St | ƒ d j o6 | d d j o t d ƒ ‚ n t d „ | Dƒ ƒ St d t | ƒ ƒ ‚ Wn t j
o t d ƒ ‚ n Xd S(
sg Take list of arguments and extract/create proper start, stop, and step
values and return in a tuplei i i i s step argument must not be zeroc s s x | ] } t | ƒ Vq Wd S( N( t int( t .0t x( ( s* /usr/lib64/python2.6/Demo/classes/Range.pys
s s$ range() accepts 1-3 arguments, givensA range() arguments must be numbers or strings representing numbersN( t lenR t
ValueErrort tuplet TypeError( t arglist( ( s* /usr/lib64/python2.6/Demo/classes/Range.pyt
handleargs s "c g sC t | ƒ \ } } } | } x! | | j o | V| | 7} q Wd S( s, Function to implement 'range' as a generatorN( R ( t at startt stopt stept value( ( s* /usr/lib64/python2.6/Demo/classes/Range.pyt genrange s
t oldrangec B s2 e Z d Z d „ Z d „ Z d „ Z d „ Z RS( s Class implementing a range object.
To the user the instances feel like immutable sequences
(and you can't concatenate or slice them)
Done using the old way (pre-iterators; __len__ and __getitem__) to have an
object be used by a 'for' loop.
c G sE t | ƒ \ | _ | _ | _ t d | i | i | i ƒ | _ d S( s„ Initialize start, stop, and step values along with calculating the
nubmer of values (what __len__ will return) in the rangei N( R R
R R t maxR ( t selfR ( ( s* /usr/lib64/python2.6/Demo/classes/Range.pyt __init__, s c C s d | i | i | i f S( s- implement repr(x) which is also used by prints range(%r, %r, %r)( R
R R ( R ( ( s* /usr/lib64/python2.6/Demo/classes/Range.pyt __repr__2 s c C s | i S( s implement len(x)( R ( R ( ( s* /usr/lib64/python2.6/Demo/classes/Range.pyt __len__6 s c C sA d | j o
| i j n o | i | i | St d ‚ d S( s implement x[i]i s range[i] index out of rangeN( R R
R t
IndexError( R t i( ( s* /usr/lib64/python2.6/Demo/classes/Range.pyt __getitem__: s !( t __name__t
__module__t __doc__R R R R ( ( ( s* /usr/lib64/python2.6/Demo/classes/Range.pyR " s
c
C s< d d k } d d k } | i d d d ƒ } t t d d d ƒ ƒ } t t d d d ƒ ƒ } | | j p
| | j o t d | | | f ƒ ‚ n d GH| i ƒ } x t d ƒ D] } q² W| i ƒ } x t d ƒ D] } qÕ W| i ƒ } x | i d ƒ D] } qû W| i ƒ } | | Gd GH| | Gd GH| | Gd
GHd S( Niÿÿÿÿi id i sE error in implementation:
correct = %s
old-style = %s
generator = %ss Timings for range(1000):iè s sec (old-style class)s sec (generator)s sec (built-in)( t timet __builtin__t ranget listR R t Exception(
R R t correct_resultt oldrange_resultt genrange_resultt t1R t t2t t3t t4( ( s* /usr/lib64/python2.6/Demo/classes/Range.pyt testB s0
t __main__N( ( R R R R R' R ( ( ( s* /usr/lib64/python2.6/Demo/classes/Range.pyt s