Reformat all code with black formatter.

app.py

@@ -7,8 +7,9 @@ import wordle
 
 app = Flask(__name__)
 
+
 def parse_guess(guess):
-    return 'foody', 'CICMI'
+    return "foody", "CICMI"
 
 
 @app.route("/")
@@ -19,7 +20,6 @@ def parse_guess(guess):
 @app.route("/<g1>/<g2>/<g3>/<g4>/<g5>")
 @app.route("/<g1>/<g2>/<g3>/<g4>/<g5>/<g6>")
 def solver(g1=None, g2=None, g3=None, g4=None, g5=None, g6=None):
-
     constraints = wordle.Constraints()
 
     guesses = []
@@ -63,7 +63,8 @@ def dictionary(page=0):
     start_word = page * PAGE_SIZE
     end_word = start_word + PAGE_SIZE
 
-    words = words[start_word: end_word]
+    words = words[start_word:end_word]
 
-    return render_template("dictionary.html",
-                           page=page, max_pages=max_pages, words=words)
+    return render_template(
+        "dictionary.html", page=page, max_pages=max_pages, words=words
+    )

play.py

@@ -6,7 +6,8 @@ import wordle
 def display_instructions():
     """Print out instuctions before starting play."""
 
-    print(f"""Welcome to Wordle!
+    print(
+        f"""Welcome to Wordle!
 
     Wordle has a hidden word of five letters, and you get to
     make up to six guesses to find out what it is.
@@ -15,12 +16,13 @@ def display_instructions():
     * {wordle.display_result(wordle.LetterResult.CORRECT, "Correct!")}
     * {wordle.display_result(wordle.LetterResult.MOVE, "Correct, in a different location.")}
     * {wordle.display_result(wordle.LetterResult.INCORRECT, "Not in the word.")}
-    """)
+    """
+    )
 
 
 def read_valid_guess(guess_number):
     while True:
-        print(f"Guess {guess_number}: ", end='')
+        print(f"Guess {guess_number}: ", end="")
         guess = input()
         if guess in wordle.dictionary():
             return guess
@@ -29,9 +31,9 @@ def read_valid_guess(guess_number):
 
 
 def display_results(guess, results):
-    print("  ", end='')
+    print("  ", end="")
     for i in range(wordle.WORDLE_LENGTH):
-        print(wordle.display_result(results[i], guess[i]), end='')
+        print(wordle.display_result(results[i], guess[i]), end="")
     print("")
 
 
@@ -56,5 +58,5 @@ def play_game():
     print(f"Sorry, no guesses remaining. The word was: {target}")
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     play_game()

test_wordle.py

@@ -9,49 +9,75 @@ import unittest
 
 
 class TestConstraints(unittest.TestCase):
-
     def test_empty(self):
         constraints = wordle.Constraints()
-        self.assertTrue(constraints.matches('abcde'))
-        self.assertTrue(constraints.matches('bcdef'))
+        self.assertTrue(constraints.matches("abcde"))
+        self.assertTrue(constraints.matches("bcdef"))
 
     def test_correct(self):
         constraints = wordle.Constraints()
-        constraints.update_graded('abcde', [LetterResult.CORRECT, LetterResult.INCORRECT, LetterResult.INCORRECT, LetterResult.INCORRECT, LetterResult.INCORRECT])
+        constraints.update_graded(
+            "abcde",
+            [
+                LetterResult.CORRECT,
+                LetterResult.INCORRECT,
+                LetterResult.INCORRECT,
+                LetterResult.INCORRECT,
+                LetterResult.INCORRECT,
+            ],
+        )
 
-        self.assertTrue(constraints.matches('amnop'))
-        self.assertTrue(constraints.matches('aaaaa'))
+        self.assertTrue(constraints.matches("amnop"))
+        self.assertTrue(constraints.matches("aaaaa"))
 
-        self.assertFalse(constraints.matches('abcde'))
-        self.assertFalse(constraints.matches('lmnop'))
-        self.assertFalse(constraints.matches('aedcb'))
-        self.assertFalse(constraints.matches('amnob'))
+        self.assertFalse(constraints.matches("abcde"))
+        self.assertFalse(constraints.matches("lmnop"))
+        self.assertFalse(constraints.matches("aedcb"))
+        self.assertFalse(constraints.matches("amnob"))
 
     def test_correct_count_limit(self):
         constraints = wordle.Constraints()
-        constraints.update_graded('aazzz', [LetterResult.CORRECT, LetterResult.INCORRECT, LetterResult.INCORRECT, LetterResult.INCORRECT, LetterResult.INCORRECT])
+        constraints.update_graded(
+            "aazzz",
+            [
+                LetterResult.CORRECT,
+                LetterResult.INCORRECT,
+                LetterResult.INCORRECT,
+                LetterResult.INCORRECT,
+                LetterResult.INCORRECT,
+            ],
+        )
 
-        self.assertTrue(constraints.matches('abcde'))
-        self.assertTrue(constraints.matches('abbbb'))
+        self.assertTrue(constraints.matches("abcde"))
+        self.assertTrue(constraints.matches("abbbb"))
 
-        self.assertFalse(constraints.matches('aabbb'))
-        self.assertFalse(constraints.matches('abbba'))
-        self.assertFalse(constraints.matches('bbbbb'))
-        self.assertFalse(constraints.matches('bbbba'))
-        self.assertFalse(constraints.matches('babbb'))
+        self.assertFalse(constraints.matches("aabbb"))
+        self.assertFalse(constraints.matches("abbba"))
+        self.assertFalse(constraints.matches("bbbbb"))
+        self.assertFalse(constraints.matches("bbbba"))
+        self.assertFalse(constraints.matches("babbb"))
 
     def test_move(self):
         constraints = wordle.Constraints()
-        constraints.update_graded('abcde', [LetterResult.MOVE, LetterResult.INCORRECT, LetterResult.INCORRECT, LetterResult.INCORRECT, LetterResult.INCORRECT])
+        constraints.update_graded(
+            "abcde",
+            [
+                LetterResult.MOVE,
+                LetterResult.INCORRECT,
+                LetterResult.INCORRECT,
+                LetterResult.INCORRECT,
+                LetterResult.INCORRECT,
+            ],
+        )
 
-        self.assertTrue(constraints.matches('zzzza'))
-        self.assertTrue(constraints.matches('zzzaa'))
-        self.assertTrue(constraints.matches('zaaaa'))
+        self.assertTrue(constraints.matches("zzzza"))
+        self.assertTrue(constraints.matches("zzzaa"))
+        self.assertTrue(constraints.matches("zaaaa"))
 
-        self.assertFalse(constraints.matches('azzzz'))
-        self.assertFalse(constraints.matches('zzzzz'))
-        self.assertFalse(constraints.matches('zzzba'))
+        self.assertFalse(constraints.matches("azzzz"))
+        self.assertFalse(constraints.matches("zzzzz"))
+        self.assertFalse(constraints.matches("zzzba"))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     unittest.main()

wordle.py

@@ -24,7 +24,6 @@ class InvalidWord(Exception):
     pass
 
 
-
 def select_word():
     return random.choice(list(dictionary.words()))