Python3.7.0 Shell添加清屏快捷键的实现示例

1、找到python的安装目录在python （版本号）\lib\idlelib目录下

添加Clearwindow.py文件

源代码如下：

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)

2、继续在当前目录下（python （版本号）\lib\idlelib）打开编辑config-extensions.def（IDLE扩展配置文件）

在原文件下添加如下代码：

[ClearWindow]
enable=1
enable_editor=0
enable_shell=1
[ClearWindow_cfgBindings]
clear-window=<Control-Key-w>

3、重新启动IDLE，点击Options，可看到：

输入一些代码

Ctrl+w

即可完成清屏！！！！到此这篇关于Python3.7.0 Shell添加清屏快捷键的实现示例的文章就介绍到这了,更多相关Python Shell添加清屏内容请搜索小牛知识库以前的文章或继续浏览下面的相关文章希望大家以后多多支持小牛知识库！