ENH: Add a function like PYQT signal

[an-unimportant-person]

Feature Type

• Adding new functionality to pandas

• Changing existing functionality in pandas

• Removing existing functionality in pandas

Problem Description

I hope this function can use to keep two or more dataframe same like PyQt View and Model (if I revise model view will change )

Feature Description

from typing import Callable

class Index():
def init(self,column = -1,row = -1):
self.column = column
self.row = row
def check(self,reviseRange):
"""if self.column,self.index in range return True"""
return True
class dataframe:
def init(self):
self.handlers = {Index:Callable}#index,function
def _trigger(self,reviseRange):
"""use @ to adapt iloc loc setitem """
for i,f in self.handlers.items():
if i.check():
f(reviseRange)

Alternative Solutions

pyqt singal

Additional Context

No response

[jbrockmendel]

Quick explanation for those of us who don’t know what pyqt signal is?