SimpleButtonExample.py

import maya.cmds as cmds

class ExampleButton(object):
    CMD = cmds.button
    
    def __init__(self, *args, **kwargs):
        self.Widget = self.CMD (*args, **kwargs)
        
    @property
    def Label(self):
        return self.CMD(self.Widget, q=True, label=True)
        
example = cmds.window()
col = cmds.columnLayout()
btn = ExampleButton("hello world")
cmds.showWindow(example)
print btn.Label
# hello world</code></pre>