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class MyRange:
def __init__( self, start, stop, step ):
self.__sequence = range( start, stop, step )
self.__nextValue = 0
def __iter__( self ):
return self
def next( self ):
try:
value = self.__sequence[ self.__nextValue ]
except IndexError:
raise StopIteration
else:
self.__nextValue += 1
return value
range1 = MyRange( 0, 10, 1 )
for value in range1:
print value,
print
range2 = MyRange( 0, 10, 1 )
range2Iterator = iter( range2 ) # retrieve iterator for range2
while 1:
try:
value = range2.next()
except StopIteration:
break
else:
print value,
print
range3 = MyRange( 0, 10, 1 )
range3Iterator1 = iter( range3 )
range3Iterator2 = iter( range3 )
for i in range( 10 ):
print "Loop iteration %d: range3Iterator1.next() = %d" % ( i, range3Iterator1.next() )
print
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