paul@6 | 1 | #!/usr/bin/env python |
paul@6 | 2 | |
paul@6 | 3 | """ |
paul@6 | 4 | Iterator objects. |
paul@6 | 5 | |
paul@290 | 6 | Copyright (C) 2015, 2016 Paul Boddie <paul@boddie.org.uk> |
paul@6 | 7 | |
paul@6 | 8 | This program is free software; you can redistribute it and/or modify it under |
paul@6 | 9 | the terms of the GNU General Public License as published by the Free Software |
paul@6 | 10 | Foundation; either version 3 of the License, or (at your option) any later |
paul@6 | 11 | version. |
paul@6 | 12 | |
paul@6 | 13 | This program is distributed in the hope that it will be useful, but WITHOUT |
paul@6 | 14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
paul@6 | 15 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
paul@6 | 16 | details. |
paul@6 | 17 | |
paul@6 | 18 | You should have received a copy of the GNU General Public License along with |
paul@6 | 19 | this program. If not, see <http://www.gnu.org/licenses/>. |
paul@6 | 20 | """ |
paul@6 | 21 | |
paul@355 | 22 | class itemiterator: |
paul@6 | 23 | |
paul@290 | 24 | "An iterator for objects providing item access." |
paul@6 | 25 | |
paul@6 | 26 | def __init__(self, l): |
paul@6 | 27 | |
paul@6 | 28 | "Initialise with the given list 'l'." |
paul@6 | 29 | |
paul@6 | 30 | self.l = l |
paul@6 | 31 | self.i = 0 |
paul@6 | 32 | |
paul@6 | 33 | def next(self): |
paul@6 | 34 | |
paul@6 | 35 | "Return the next item." |
paul@6 | 36 | |
paul@6 | 37 | try: |
paul@6 | 38 | value = self.l[self.i] |
paul@6 | 39 | self.i += 1 |
paul@6 | 40 | return value |
paul@6 | 41 | except IndexError: |
paul@6 | 42 | raise StopIteration() |
paul@6 | 43 | |
paul@6 | 44 | # vim: tabstop=4 expandtab shiftwidth=4 |