python - NameError: file <maya console> line 1: name "pasteTheseKeys" is not defined -

i can't figure out how class method pastethesekeys() work. tried passing (self) parameter got error passing in 2 parameters when me looks i'm passing in 1 self. removed self argument , getting message.

# animation copy tool # bakari holmes 5/7/2015 # designed copy , existing animation # 1 rig , make process easier # simple ui  import maya.cmds mc import functools import maya.mel mm import pprint  class animcopywindow(object):     #@classmethod     def showui(cls):         win = cls()         win.create()         return win     def __init__(self):         self.window = "animation copy tool"         self.title = "animation copier"         self.size = (546,350)     def pastethesekeys():         self.offsetval = mc.intfieldgrp(self.int_offset, q=true, value1=true)         self.selobj_pastekeys = mc.ls(sl=true)          objectquant in self.selobj_pastekeys:             print objectquant             self.ct = mc.currenttime(query = true)             self.t = self.ct + self.offsetval             mc.currenttime(self.t)            # mc.selectkey(selobj_pastekeys[objectquant])             mc.pastekey(time=(self.t,self.t), f=(1.0,1.0), option="merge", copies=1, to=0, fo=0, vo=0)     def create(self):         # check see if window exists         if mc.window(self.window,exists=true):              mc.deleteui(self.window,window=true)          self.window = mc.window(self.window, title=self.title,widthheight=self.size,menubar=true)         self.copyanim = mc.window(title="transfer animation tool", backgroundcolor=[0.3,0.3,0.3],sizeable=false,resizetofitchildren=true)         #set layout ui         mc.columnlayout(adjustablecolumn=true)         self.tx_src = mc.textfieldgrp(label="source object", editable=false, text=sel[0])         self.int_offset = mc.intfieldgrp(label="frame offset amount", value1=0)         #add paste animation button         self.btn1 = mc.button(label="paste animation", command="pastethesekeys()", bgc=[0.1,0.1,0.5])          #add close button window         self.btn2 = mc.button(label="close window", command="mc.deleteui", bgc=[0.2,0.2,0.2])           mc.showwindow()   #copyanim="copyanim"  #store selected object info sel = mc.ls(selection=true)  if (len(sel) != 1):     mm.eval("warning must select 1 animated object;")  else:     mc.copykey()     win = animcopywindow()     win.create()      pprint.pprint(channels()) 

the function pastethesekeys() needs defined self parameter used outside function. or use staticmethod decorator if need not accept self.

@staticmethod def pastethesekeys():     ...