Boolean values: Difference between revisions
Content added Content deleted
(→{{header|Python}}: Consolidation.) |
(→{{header|Python}}: ++String examples) |
||
| Line 61: | Line 61: | ||
A user-created class that defines a <tt>.__nonzero__()</tt> method to return False, or whose <tt>.__len__()</tt> method returns 0 will be treated as <code>False</code>, otherwise the class/instance is treated as <code>True</code>. |
A user-created class that defines a <tt>.__nonzero__()</tt> method to return False, or whose <tt>.__len__()</tt> method returns 0 will be treated as <code>False</code>, otherwise the class/instance is treated as <code>True</code>. |
||
Some examples: |
'''Some examples:''' |
||
<lang python>>>> True |
<lang python>>>> True |
||
True |
True |
||
| Line 97: | Line 97: | ||
>>> bool({}) |
>>> bool({}) |
||
False |
False |
||
>>> bool("") |
|||
False |
|||
>>> bool("False") |
|||
True |
|||
>>> </lang> |
>>> </lang> |
||