CODEWITHSUNDEEP
pythonstringtexttkinter
Hunter Kepley
Hunter Kepley

Reputation: 37

My function makes a new line in tkinter, not sure why

I am making a tkinter program and for some reason [I have a function binded to control-O] when I use it, it creates a new line. Here is the function:

def fileOpen(textView):
    try:
        global currentText
        global currentName
        global currentTempName
        myfile = tkFileDialog.askopenfile(title='Open a file', mode='r')
        text.delete('1.0', END)
        loadedfile = myfile.read()
        currentText = loadedfile
        currentFile = myfile.name
        currentName = currentFile
        currentName = currentName.rsplit('/', 1)[-1] #get the 'name.ext' part only
        currentName = currentName.rsplit('\\', 1)[-1] #incase you're usin windows
        currentTempName = currentName
        currentFileButton.config(text = currentName)
        myfile.close()
        textView.insert("end", loadedfile)
    except:
        return

Here is where it's binded:

def ctrlO(arg):
    fileOpen(text)

and the actual binding:

root.bind("<Control-o>", ctrlO)

[I am using a text widget, and binding to it doesn't fix the problem]

To better explain the problem, when I press ctrl+o to open the openfile dialog, it creates a new line, as if I pressed 'Enter', but only at the end of the file. I can provide more code if needed, but those are the only places those are used at.

Thanks

(I realize that function is messy)

Edit: It doesn't really affect the program as I clear the text between openings, but it just is a bit annoying and I'm sure easily fixable.

Upvotes: 0

Views: 328

Answers (1)

jasonharper
jasonharper

Reputation: 9621

That's the normal behavior of Control-O in a Text widget; it would happen even if you didn't have your key binding at all. To override it, you need to return "break" in your event handler, to prevent any further propagation of the event. I'm pretty sure that you'll have to bind directly to the Text widget for this to activate before the built-in behavior. You may still want a binding on the root widget, so that the command works even if the user never clicked in the text field to give it keyboard focus.

Upvotes: 1

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