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Created on 2018-09-12 12:55 by rajesh99div99, last changed 2022-04-11 14:59 by admin. This issue is now closed.
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| msg325136 - (view) | Author: Rajesh (rajesh99div99) | Date: 2018-09-12 12:55 | |
List.reverse() .... this is working in reverse order List.reverse ....this is not giving syntax error and printing the list as it is. Can you consider this as bug and fix it in further versions ? |
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| msg325137 - (view) | Author: Steven D'Aprano (steven.daprano) *  |
Date: 2018-09-12 13:25 | |
This is not a bug or a syntax error, and the behaviour goes back to at least Python 1.5 if not older. List.reverse returns a reference to the method object itself. List.reverse() *calls* the method. This is standard behaviour in Python, all methods and functions are first-class values, anything you can do with an object, you can do with a function or method too. For example: py> list.reverse.__name__ 'reverse' py> print(len) <built-in function len> py> alist = [1, "a", chr] py> print(alist) [1, 'a', <built-in function chr>] |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:05 | admin | set | github: 78825 |
| 2018-09-12 13:25:13 | steven.daprano | set | status: open -> closed nosy: + steven.daprano messages: + msg325137 resolution: not a bug stage: resolved |
| 2018-09-12 12:55:11 | rajesh99div99 | create | |