Re: comparison on list yields surprising result
On Friday 28 August 2009 21:00:31 Dr. Phillip M. Feldman wrote: In [21]: x Out[21]: [1, 2, 3, 5] In [22]: x6 Out[22]: True Is this a bug? No, it is a feature, so that you can use sorted on this: [[1,2,3,4,5],6] - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison on list yields surprising result
On Sat, 29 Aug 2009 09:36:38 +0200, Hendrik van Rooyen wrote: On Friday 28 August 2009 21:00:31 Dr. Phillip M. Feldman wrote: In [21]: x Out[21]: [1, 2, 3, 5] In [22]: x6 Out[22]: True Is this a bug? No, it is a feature, so that you can use sorted on this: [[1,2,3,4,5],6] If it's a feature, it has gone away in Python 3. Python 3.0.1 (r301:69556, Apr 2 2009, 00:41:38) [GCC 4.1.2 20070925 (Red Hat 4.1.2-27)] on linux2 Type help, copyright, credits or license for more information. [[1,2,3], 5].sort() Traceback (most recent call last): File stdin, line 1, in module TypeError: unorderable types: int() list() -- Steven -- http://mail.python.org/mailman/listinfo/python-list
comparison on list yields surprising result
In [21]: x Out[21]: [1, 2, 3, 5] In [22]: x6 Out[22]: True Is this a bug? -- View this message in context: http://www.nabble.com/comparison-on-list-yields-surprising-result-tp25195170p25195170.html Sent from the Python - python-list mailing list archive at Nabble.com. -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison on list yields surprising result
On Aug 29, 5:00 am, Dr. Phillip M. Feldman pfeld...@verizon.net wrote: In [21]: x Out[21]: [1, 2, 3, 5] In [22]: x6 Out[22]: True Is this a bug? No. http://docs.python.org/reference/expressions.html#notin -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison on list yields surprising result
Dr. Phillip M. Feldman schrieb: In [21]: x Out[21]: [1, 2, 3, 5] In [22]: x6 Out[22]: True Is this a bug? In python2.x, it's the defined behavior - all types are somhow comparable. The comparison is stable (all lists compare larger to all ints), but of course this by no means well-defined. This debatable design-decision has been remedied in Python3: Python 3.1 (r31:73578, Jun 27 2009, 21:49:46) [GCC 4.0.1 (Apple Inc. build 5493)] on darwin Type help, copyright, credits or license for more information. list(range(10)) 10 Traceback (most recent call last): File stdin, line 1, in module TypeError: unorderable types: list() int() Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison on list yields surprising result
Dr. Phillip M. Feldman schrieb: In [21]: x Out[21]: [1, 2, 3, 5] In [22]: x6 Out[22]: True Is this a bug? In python2.x, it's the defined behavior - all types are somhow comparable. The comparison is stable (all lists compare larger to all ints), but of course this by no means well-defined. This debatable design-decision has been remedied in Python3: Python 3.1 (r31:73578, Jun 27 2009, 21:49:46) [GCC 4.0.1 (Apple Inc. build 5493)] on darwin Type help, copyright, credits or license for more information. list(range(10)) 10 Traceback (most recent call last): File stdin, line 1, in module TypeError: unorderable types: list() int() Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: comparison on list yields surprising result
It looks as though what I should have done is the following: In [23]: array(x) 6 Out[23]: array([False, False, False, False], dtype=bool) -- View this message in context: http://www.nabble.com/comparison-on-list-yields-surprising-result-tp25195170p25195893.html Sent from the Python - python-list mailing list archive at Nabble.com. -- http://mail.python.org/mailman/listinfo/python-list
