tkinter - "NameError: name 'frame' is not defined"

[Mocap]

I'm trying to create a class of buttons and bind it to tkinter but it keeps telling me "NameError: name 'frame' is not defined."

I tried this solution here but it's not working - https://stackoverflow.com/questions/4625...ned-python

Here's what it looks like:

>>> class AccountingButtons:

	def __init__(self, master):
		frame = Frame(master)
		frame.pack()

		
>>> self.incomeopButton = Button(frame, text="Display Income From Operations", command=self.income_from_operations)
Traceback (most recent call last):
  File "<pyshell#76>", line 1, in <module>
    self.incomeopButton = Button(frame, text="Display Income From Operations", command=self.income_from_operations)
NameError: name 'frame' is not defined
>>> from tkinter import Frame
>>> from tkinter import Text
>>> from tkinter import Label
>>> class AccountingButtons:

	def __init__(self, master):
		frame = Frame(master)
		frame.pack()

		
>>> self.incomeopButton = Button(frame, text="Display Income From Operations", command=self.income_from_operations)
Traceback (most recent call last):
  File "<pyshell#86>", line 1, in <module>
    self.incomeopButton = Button(frame, text="Display Income From Operations", command=self.income_from_operations)
NameError: name 'frame' is not defined