(Python2,Python3 通用)
保存如下代码到 ClearWindow.py
""" Clear Window Extension Version: 0.2 Author: Roger D. Serwy roger.serwy@gmail.com Date: 2009-06-14 It provides "Clear Shell Window" under "Options" with ability to undo. Add these lines to config-extensions.def [ClearWindow] enable=1 enable_editor=0 enable_shell=1 [ClearWindow_cfgBindings] clear-window=<Control-Key-l> """ class ClearWindow: menudefs = [ ('options', [None, ('Clear Shell Window', '<<clear-window>>'), ]),] def __init__(self, editwin): self.editwin = editwin self.text = self.editwin.text self.text.bind("<<clear-window>>", self.clear_window2) self.text.bind("<<undo>>", self.undo_event) # add="+" doesn't work def undo_event(self, event): text = self.text text.mark_set("iomark2", "iomark") text.mark_set("insert2", "insert") self.editwin.undo.undo_event(event) # fix iomark and insert text.mark_set("iomark", "iomark2") text.mark_set("insert", "insert2") text.mark_unset("iomark2") text.mark_unset("insert2") def clear_window2(self, event): # Alternative method # work around the ModifiedUndoDelegator text = self.text text.undo_block_start() text.mark_set("iomark2", "iomark") text.mark_set("iomark", 1.0) text.delete(1.0, "iomark2 linestart") text.mark_set("iomark", "iomark2") text.mark_unset("iomark2") text.undo_block_stop() if self.text.compare('insert', '<', 'iomark'): self.text.mark_set('insert', 'end-1c') self.editwin.set_line_and_column() def clear_window(self, event): # remove undo delegator undo = self.editwin.undo self.editwin.per.removefilter(undo) # clear the window, but preserve current command self.text.delete(1.0, "iomark linestart") if self.text.compare('insert', '<', 'iomark'): self.text.mark_set('insert', 'end-1c') self.editwin.set_line_and_column() # restore undo delegator self.editwin.per.insertfilter(undo)
将上述文件保存到 C:Python27Libidlelib 下。再打开此目录下的 config-extensions.def 文件,在其尾部添加如下代码
################################# >>> Added for clear Window [ClearWindow] enable=1 enable_editor=0 enable_shell=1 [ClearWindow_cfgBindings] clear-window=<Control-Key-l>
好了,现在 IDLE 已经可以支持 Ctrl + l 清屏了。
注意:如果遇到 IDLE 快捷键冲突 (我在 Ubuntu 18.04 的 Python3.6.8 IDLE 中遇到过),例如 IDLE 默认已经定义了 Ctrl + l 为其它用途快捷键,则可以在 IDLE 菜单 Options -> Configure IDLE -> Keys 重新设定快捷键,如下图:
以上方法同样适用于 Linux。在 Linux 下,上述两个文件应该位于: /usr/lib/python2.7/idlelib 或 /usr/lib/python3.4/idlelib 或 /usr/lib64/python2.7/idlelib
完。