Question

When running my program that makes the function call

self.getFileButton = Button(self,
                            text = "...",
                            command =
                            tkFileDialog.askopenfilename(mode="r+b", **self.file_opt))

I get the error

File "C:/Documents and Settings/l/My Documents/Python/csv_GUI.py", line 33, in create_widgets
tkFileDialog.askopenfilename(mode="r+b", **self.file_opt))

AttributeError: selectFile instance has no attribute ‘file_opt’

Answer 1

Do you actually have a file_opt member defined in, e.g., your __init__ method, or elsewhere?

If the problem is that you are defining one, but not until after you’ve done the getFileButton, can you just rearrange the order? If not, mgilson’s solution is the right one. But otherwise, it’s much simpler.

And if you don’t have a file_opt member anywhere, it’s even simpler: Don’t try to pass something that doesn’t exist.