IDLE清空窗口的实例

作者: 关于计算机  发布:2019-10-03

使用Python IDLE时意识并不曾清空当前窗口的急忙键,也从没像 clear 这样的命令,使用十三分辛勤。

新建三个ClearWindow.py脚本,源码如下:

"""

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)

拷贝ClearWindow.py文件,放在Python安装目录Python XXXLibidlelib下边(XXX为你的python版本,举个例子2.7)。

记事本张开Python XXXLibidlelib目录下的config-extensions.def(IDLE扩大的配置文件), 为严防出错,你能够在开垦它此前先copy三个备份 。

修改config-extensions.def ,在结尾加多如下内容,然后保留退出:

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

展开Python的IDLE,options选项中就可以看出增添了Clear shell window ctrl+;。

在IDLE输入代码,然后按Ctrl+;(是指Ctrl和;),开采刚输入代码能够被消除了。

飞速键Ctrl+;,可修改成其余键,将

clear-window=<Control-Key-;>

里的Control和;修改成其余键就可以。

本文由金沙澳门官网送注册58发布于关于计算机,转载请注明出处:IDLE清空窗口的实例

关键词: