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class BaseBase(object):
    def method(self):
        print "BaseBase"

a = BaseBase()
a.method()

class Base1(BaseBase):
    pass

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class A(object):
    def __init__(self):
        print "A"
        super(A, self).__init__()
   
class B(object):
    def __init__(self):
        print "B"
        super(B, self).__init__()
   

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# -*- coding: utf-8 -*-
""" Command line interface to difflib.py providing diffs in four formats:

* ndiff:    lists every line and highlights interline changes.
* context:  highlights clusters of changes in a before/after format.
* unified:  highlights clusters of changes in an inline format.
* html:     generates side by side comparison with change highlights.

"""

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import sys
from opus7.exception import *

#{
class LinkedList(object):
    """
    Linked list class.
    """

#}@head

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# file test.py
import cmd
class HelloWorld(cmd.Cmd):    
    def do_greet(self,person=''):
        print "hello,",person        
    def help_greet(self):
        print '\n'.join(['greet [person]',
                         'greet the named person',
                         ])
    def complete_greet(self,text,line,begidx,endix):

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#Example
import functools

@functools.total_ordering
class Job(object):
    def __init__(self,priority,descr):
        self.priority = priority
        self.descr = descr

    def __eq__(self,other):

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#descriptor example
class RevealAccess(object):
    
    def __init__(self,initval=None,name='var'):
        self.val = initval
        self.name = name
        
    def __get__(self,obj,objtype):
        print "Retrieving",self.name
        return self.val

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#code sample 
# from wiki.python.org/moin/SimplePrograms

# "1 line: Output"
print "hello,world"

# 2 lines: input,assignment
name= raw_input('What is your name?\n')
print 'Hi %s.' % name

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class QuickFindUF(object):

  def __init__(self,N):
    self.__id = []
    for i in range(N):      
      self.__id.append(i)

  def connected(self,p,q):
    return self.__id[p] == self.__id[q]

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class WeightedQuickUnionUF(object):
    def __init__(self,N):
        self.__id = []
        self.sz = []
        for i in range(N):
            self.__id.append(i)
            self.sz.append(1)
            
    def root(self,i):
        while(i!=self.__id[i]):