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Multiple Inheritance Complete Example
Objects - Intermediate example from a Well House Consultants training course
More on Objects - Intermediate [link]

This example is described in the following article(s):
   • Multiple inheritance in Python - complete working example - [link]
   • Mixins example in Python - [link]

Source code: mult_inherit Module: Y112

# First base class

class trans(object):
        def higher(this,that):
                if this.getcapacity() > that.getcapacity():
                        return this
                return that
        @staticmethod
        def highest(collect):
                sofar = collect[0]
                for tryme in collect:
                        sofar = sofar.higher(tryme)
                return sofar

# Second base class

class label(object):
        def setname(this,name):
                this.name = name
        def getname(this):
                return this.name.upper()

# Two classes which both use multiple inheritance

class pubtrans(trans,label):
        def __init__(current,dest,time,length,pereach):
                current.time = time
                current.leng = length
                current.pe = pereach
                current.setname(dest)
        def getcapacity(current):
                return current.leng * current.pe

class pritrans(trans,label):
        def __init__(current,dest,pereach):
                current.pe = pereach
                current.setname(dest)
        def getcapacity(current):
                return current.pe -1

# test program

swindon = pubtrans("Swindon","07:17",2,75)
bath = pubtrans("Bath Spa","07:24",1,61)
keevil = pritrans("Keevil",5)
london = pubtrans("London Paddington","07:45",7,65)
seend = pritrans("Seend Cleeve",8)

flows = [keevil,swindon,seend,london,bath]

for flow in flows:
        commuters = flow.getcapacity()
        destiny = flow.getname()
        print "To",destiny,"carrying",commuters

print "\nLet's see is Seend or Swindon has the higher capacity"
toby = swindon.higher(seend)
print toby.getname(),":",toby.getcapacity()

print "\nLet's see which has the highest capacity of all"
toby = trans.highest(flows)
print toby.getname(),":",toby.getcapacity()


Learn about this subject
This module and example are covered on the following public courses:
 * Learning to program in Python
 * Python Programming
 * Intermediate Python
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