Hacked By AnonymousFox

Current Path : /proc/thread-self/root/proc/thread-self/root/proc/self/root/usr/lib64/python2.7/Demo/classes/
Upload File :
Current File : //proc/thread-self/root/proc/thread-self/root/proc/self/root/usr/lib64/python2.7/Demo/classes/Rev.pyc

�
��^c@s<dZddd��YZd�Zedkr8e�ndS(s�
A class which presents the reverse of a sequence without duplicating it.
From: "Steven D. Majewski" <sdm7g@elvis.med.virginia.edu>

It works on mutable or inmutable sequences.

>>> chars = list(Rev('Hello World!'))
>>> print ''.join(chars)
!dlroW olleH

The .forw is so you can use anonymous sequences in __init__, and still
keep a reference the forward sequence. )
If you give it a non-anonymous mutable sequence, the reverse sequence
will track the updated values. ( but not reassignment! - another
good reason to use anonymous values in creating the sequence to avoid
confusion. Maybe it should be change to copy input sequence to break
the connection completely ? )

>>> nnn = range(3)
>>> rnn = Rev(nnn)
>>> for n in rnn: print n
...
2
1
0
>>> for n in range(4, 6): nnn.append(n)   # update nnn
...
>>> for n in rnn: print n     # prints reversed updated values
...
5
4
2
1
0
>>> nnn = nnn[1:-1]
>>> nnn
[1, 2, 4]
>>> for n in rnn: print n     # prints reversed values of old nnn
...
5
4
2
1
0

#
>>> WH = Rev('Hello World!')
>>> print WH.forw, WH.back
Hello World! !dlroW olleH
>>> nnn = Rev(range(1, 10))
>>> print nnn.forw
[1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> print nnn.back
[9, 8, 7, 6, 5, 4, 3, 2, 1]

>>> rrr = Rev(nnn)
>>> rrr
<1, 2, 3, 4, 5, 6, 7, 8, 9>

tRevcBs,eZd�Zd�Zd�Zd�ZRS(cCs||_||_dS(N(tforwtback(tselftseq((s(/usr/lib64/python2.7/Demo/classes/Rev.pyt__init__?s	cCs
t|j�S(N(tlenR(R((s(/usr/lib64/python2.7/Demo/classes/Rev.pyt__len__CscCs|j|dS(Ni(R(Rtj((s(/usr/lib64/python2.7/Demo/classes/Rev.pyt__getitem__FscCs�|j}t|t�r'd}d}nHt|t�rEd}d}n*t|t�rcd}d}nd}d}g|jD]}t|�^qy}|d |j|�|dS(Ns[]s, s()ts<>ii����(Rt
isinstancetlistttupletstrRtjoin(RRtwraptseptitemtoutstrs((s(/usr/lib64/python2.7/Demo/classes/Rev.pyt__repr__Is				"(t__name__t
__module__RRR	R(((s(/usr/lib64/python2.7/Demo/classes/Rev.pyR>s			cCs%ddl}ddl}|j|�S(Ni����(tdoctestRttestmod(RR((s(/usr/lib64/python2.7/Demo/classes/Rev.pyt_testZst__main__N((t__doc__RRR(((s(/usr/lib64/python2.7/Demo/classes/Rev.pyt<module><s	

Hacked By AnonymousFox1.0, Coded By AnonymousFox