第一步：在 c:\python37\lib\idlelib 目錄下新建clearwindow.py檔案，將一下**複製到檔案中
"""
clear window extension
version: 0.2
author: roger d. serwy
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="""
class clearwindow:
menudefs = [
('options', [none,
('clear shell window', '<>'),
]),]
def __init__(self, editwin):
self.editwin = editwin
self.text = self.editwin.text
self.text.bind("<>", self.clear_window2)
self.text.bind("<>", 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)
[clearwindow]
enable=1
enable_editor=0
enable_shell=1
[clearwindow_cfgbindings]
clear-window=
第三步：重新開啟idle，看看工具欄中的options選項下是不是多了乙個clear shell window ctrl + l
如果是證明你成功了，如果沒有回去檢查下clearwindow檔案是不是小寫命名的，注意大寫。
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