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lines changed Original file line number Diff line number Diff line change 1+ #Esse arquvivo documeta o comportamento de um Trem
2+
3+ ``` python
4+ >> > from trens.trem_gof import Trem
5+ >> > t = Trem(4 )
6+ >> > for vagao in t:
7+ ... print (vagao)
8+ vagao # 1
9+ vagao # 2
10+ vagao # 3
11+ vagao # 4
12+
13+ ```
Original file line number Diff line number Diff line change 1+ # -*- coding: utf-8 -*-
2+ from __future__ import absolute_import , unicode_literals
Original file line number Diff line number Diff line change 1+ class Trem :
2+ def __init__ (self , num_vagoes ):
3+ self .num_vagoes = num_vagoes
4+
5+ def __iter__ (self ):
6+ return IteradorTrem (self .num_vagoes )
7+
8+
9+ class IteradorTrem :
10+ def __init__ (self , num_vagoes ):
11+ self .atual = 0
12+ self .ultimo_vagao = num_vagoes - 1
13+
14+ def __next__ (self ):
15+ if self .atual <= self .ultimo_vagao :
16+ self .atual += 1
17+ return 'vagao #%s' % (self .atual )
18+ else :
19+ raise StopIteration ()
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