Python-2.7.10 Password GUI not working - python-2.7

Question

Working on a Python 2.7.10 program, for a password gui but it is giving the error that Application is not defined. I am not sure if there is something wrong with Class Application(Frame) or app = Application(root), because it ask for me to define Application but I don't why they would ask me.
from Tkinter import *
class Application(Frame):
def _init_(self, master):
Frame._init_(self,master)
self.grid()
self.create_widgets()
def create_widgets(self):
self.instruction = Label(self, text = "Enter the password")
self.instruction.grid(row = 0, column = 0, columnspan = 2, sticky = W)
self.password = Entry(self)
self.password.grid(row = 1, column = 1, sticky = W)
self.submit_button = Button(self, text = "Submit", commmand = self.reveal)
self.submit_button.grid(row = 2, column = 0, sticky = W)
self.text = Text(self, width = 35, height = 5, wrap = WORD)
self.text.grid(row = 3, column = 0, columnspan = 2, sticky = W)
def reveal(self):
content = self.password.get()
if content == "password":
message = "You have the order"
else:
message = "Access denied."
self.text.delete(0.0, END)
self.text.insert(0.0, message)
root = Tk()
root.title("Password")
root.geometry("250x150")
app= Application(root)
root.mainloop()

Answer 1

I've fixed your code, here it is:
from Tkinter import *
class Application(Frame):
def __init__(self, master):
Frame.__init__(self,master)
self.grid()
self.create_widgets()
def create_widgets(self):
self.instruction = Label(self, text = "Enter the password")
self.instruction.grid(row = 0, column = 0, columnspan = 2, sticky = W)
self.password = Entry(self)
self.password.grid(row = 1, column = 1, sticky = W)
self.submit_button = Button(self, text = "Submit", command = self.reveal)
self.submit_button.grid(row = 2, column = 0, sticky = W)
self.text = Text(self, width = 35, height = 5, wrap = WORD)
self.text.grid(row = 3, column = 0, columnspan = 2, sticky = W)
def reveal(self):
content = self.password.get()
if content == "password":
message = "You have the order"
else:
message = "Access denied."
self.text.delete(0.0, END)
self.text.insert(0.0, message)
root = Tk()
root.title("Password")
root.geometry("250x150")
app= Application(root)
root.mainloop()
Your problems were:
You used _init_ instead of __init__
Typo of "commmand" instead of "command"
Last two lines of procedure reveal in Application were incorrectly indented (logic error, not syntax or run-time)
It wasn't really clear what your question was to be honest and I just did this in Python 3.4.3 and made changes so that it should run in Python 2.7.10. I hope that helps.