tkinter and scrabble solver problems

Question

I have had to learn python 3.3.3 for a logic and design class. I am extremely new at programming and the code below is the culmination of what ive learned on my own in 10 weeks. I had my program working fine at a procedural level with out a GUI. my program was a typical scrabble solver. I just am having a horrible time with tkinter. I need to take my input from the entry to the main module run through and input the results to a listbox. i even gave up on passing parameters from the class tot he main so i set the rack and results to a global var. I understand that this might be too much of hassle for someone to help but any help i get to get this done before finals would be greatly appreciated. thank you in advance. ``` #only reason these are global is because im having trouble with tkinter and #passing the proper parameters to the main module global results global rack import tkinter as tk #class for GUI class application: def __init__(self): self.main=tk.Tk() #top fram includes rack…

Accepted Answer

Although I removed the scrollbar ( I guess you will figure out how to add that too) I completely rewrote your code, to be more pythonic, and easier to read and write. However I tried to stick to your code as much as possible.

I guess it is working now:

Here is the `dictionary.dat` I used:

```
beast
lemon
ape
apple
sea
pea
orange
bat
```

And here is the code itself:

```
# Import python modules
import tkinter
import tkinter.messagebox
from collections import Counter

# Module level constants
SCORES = {'A': 1, 'C': 3, 'B': 3, 'E': 1, 'D': 2, 'G': 2, 'F': 4, 'I': 1,
          'H': 4, 'K': 5, 'J': 8, 'M': 3, 'L': 1, 'O': 1, 'N': 1, 'Q': 10,
          'P': 3, 'S': 1, 'R': 1, 'U': 1, 'T': 1, 'W': 4,  'V': 4, 'Y': 4,
          'X': 8, 'Z': 10}

class App(tkinter.Tk):

def __init__(self, word_list, *args, **kwargs):
        # Initialize parent class by passing instance as first argument
        tkinter.Tk.__init__(self, *args, **kwargs)

# Store values
        self.word_list = word_list

# Setup main window
        self.title('Scrabble Solver')

# Create widgets
        rack_label = tkinter.Label(self, text='Enter your rack')
        self.rack_entry = tkinter.Entry(self)
        rack_button = tkinter.Button(self, text='Enter', command=self.search)
        quit_button = tkinter.Button(self, text='Quit', command=self.quit)
        self.valid_list = tkinter.Listbox(self, width=40, font='Courier')

# Place widgets
        rack_label.grid(row=0, column=0, sticky=tkinter.W)
        self.rack_entry.grid(row=1, column=0, sticky=tkinter.W)
        rack_button.grid(row=1, column=1, sticky=tkinter.W)
        quit_button.grid(row=1, column=2, sticky=tkinter.W)
        self.valid_list.grid(row=2, columnspan=3, sticky=tkinter.W)

def run(self):
        # Enter event loop
        self.mainloop()

def error(self):
        # Throw and error message dialog
        tkinter.messagebox.showinfo('You have entered too many letters!')

def search(self):
        # Cleanup up valid list
        self.valid_list.delete(0, tkinter.END)
        # Get data of entry, and make them lower case
        rack = self.rack_entry.get().lower()
        # Check length of data
        if len(rack) <= 8:
            return self.find_valid_words(rack)
        self.error()

def find_valid_words(self, rack):
        # Create a dictionary for valid words and its values
        valid = {}
        rack_chars = Counter(rack)
        for word in self.word_list:
            word_chars = Counter(word)
            if word_chars == word_chars & rack_chars:
                valid[word] = sum(SCORES[letter.upper()] for letter in word)

# Sort the results and insert them into the list box
        if valid:
            for word, score in sorted(valid.items(), key=lambda v: v[1], reverse=True):
                self.valid_list.insert(tkinter.END, '{:<10} {}'.format(word, score))
        else:
            self.valid_list.insert(tkinter.END, 'No results found.')

if __name__ == '__main__':
    # Open dictionary file and scan for words
    with open('dictionary.dat', 'r') as f:
        all_words = [word for word in f.read().split()]
    # Create instance and call run method
    App(all_words).run()
```

tkinter and scrabble solver problems

Solution

Problem