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[FIX] mis_builder: correct implementation and doctests for _min/_max
[FIX] mis_builder: correct implementation and doctests for _min/_max
Conflicts: mis_builder/models/mis_builder.py cherry pick from v8pull/90/head
Stéphane Bidoul
9 years ago
2 changed files with 154 additions and 0 deletions
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# -*- encoding: utf-8 -*- |
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############################################################################## |
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# |
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# mis_builder module for Odoo, Management Information System Builder |
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# Copyright (C) 2014-2015 ACSONE SA/NV (<http://acsone.eu>) |
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# |
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# This file is a part of mis_builder |
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# |
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# mis_builder is free software: you can redistribute it and/or modify |
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# it under the terms of the GNU Affero General Public License v3 or later |
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# as published by the Free Software Foundation, either version 3 of the |
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# License, or (at your option) any later version. |
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# |
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# mis_builder is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU Affero General Public License v3 or later for more details. |
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# |
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# You should have received a copy of the GNU Affero General Public License |
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# v3 or later along with this program. |
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# If not, see <http://www.gnu.org/licenses/>. |
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# |
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############################################################################## |
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|
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|
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def _sum(l): |
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""" Same as stdlib sum but returns None instead of 0 |
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in case of empty sequence. |
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|
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>>> sum([1]) |
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1 |
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>>> _sum([1]) |
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1 |
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>>> sum([1, 2]) |
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3 |
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>>> _sum([1, 2]) |
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3 |
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>>> sum([]) |
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0 |
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>>> _sum([]) |
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""" |
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if not l: |
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return None |
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return sum(l) |
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|
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|
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def _avg(l): |
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""" Arithmetic mean of a sequence. Returns None in case of empty sequence. |
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|
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>>> _avg([1]) |
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1.0 |
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>>> _avg([1, 2]) |
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1.5 |
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>>> _avg([]) |
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""" |
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if not l: |
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return None |
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return sum(l) / float(len(l)) |
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|
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def _min(*args): |
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""" Same as stdlib min but returns None instead of exception |
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in case of empty sequence. |
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|
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>>> min(1, 2) |
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1 |
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>>> _min(1, 2) |
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1 |
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>>> min([1, 2]) |
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1 |
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>>> _min([1, 2]) |
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1 |
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>>> min(1) |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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TypeError: 'int' object is not iterable |
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>>> _min(1) |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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TypeError: 'int' object is not iterable |
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>>> min([1]) |
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1 |
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>>> _min([1]) |
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1 |
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>>> min() |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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TypeError: min expected 1 arguments, got 0 |
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>>> _min() |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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TypeError: min expected 1 arguments, got 0 |
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>>> min([]) |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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ValueError: min() arg is an empty sequence |
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>>> _min([]) |
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""" |
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if len(args) == 1 and not args[0]: |
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return None |
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return min(*args) |
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|
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def _max(*args): |
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""" Same as stdlib max but returns None instead of exception |
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in case of empty sequence. |
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|
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>>> max(1, 2) |
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2 |
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>>> _max(1, 2) |
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2 |
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>>> max([1, 2]) |
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2 |
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>>> _max([1, 2]) |
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2 |
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>>> max(1) |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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TypeError: 'int' object is not iterable |
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>>> _max(1) |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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TypeError: 'int' object is not iterable |
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>>> max([1]) |
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1 |
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>>> _max([1]) |
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1 |
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>>> max() |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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TypeError: max expected 1 arguments, got 0 |
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>>> _max() |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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TypeError: max expected 1 arguments, got 0 |
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>>> max([]) |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in ? |
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ValueError: max() arg is an empty sequence |
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>>> _max([]) |
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""" |
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if len(args) == 1 and not args[0]: |
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return None |
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return max(*args) |
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if __name__ == "__main__": |
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import doctest |
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doctest.testmod() |
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