TypeError: 'NoneType' Object Is Not Callable With Tkinter

I am trying to make a program that will play sounds on a button press. But i am having a trouble calling a function. What I want to do is click on the LowC (or any other note) bu

Solution 1:

You have both an attribute and a method named LowC.

this.LowC = Button(this,
                   text = "Low C",
                   command = this.LowC,
                   ).grid()
...

#create freq conversion
def LowC(this):
    this.freq = 262
    print(this.freq)
    this.Launch()

You should rename one of them.

By the way, if you do self.some_name = Button(args).grid(), then self.some_name will be None, because you're assigning the result of grid to the variable, not the Button instance that you want.