The value of an entry widget can be obtained with the get
method of the widget:
name_entry = tk.Entry(parent)
...
name = name_entry.get()
Optionally, you may associate an instance of a StringVar
, and retrieve the value from the StringVar
rather than from the widget:
name_var = tk.StringVar()
name_entry = tk.Entry(parent, textvariable=name_var)
...
name = name_var.get()