fix code

1 File handle/File handle binary/Deleting record in a binary file.py

@@ -3,13 +3,13 @@
 
 def bdelete():
     # Opening a file & loading it
-    with open("studrec.dat","rb") as F:
+    with open("studrec.dat", "rb") as F:
         stud = pickle.load(F)
         print(stud)
 
     # Deleting the Roll no. entered by user
     rno = int(input("Enter the Roll no. to be deleted: "))
-    with open("studrec.dat","wb") as F:
+    with open("studrec.dat", "wb") as F:
         rec = [i for i in stud if i[0] != rno]
         pickle.dump(rec, F)
 

1 File handle/File handle binary/File handle binary read (record in non list form).py

@@ -2,15 +2,14 @@
 
 
 def binary_read():
-    with open("studrec.dat","rb") as b:
+    with open("studrec.dat", "rb") as b:
         stud = pickle.load(b)
         print(stud)
 
         # prints the whole record in nested list format
         print("contents of binary file")
 
         for ch in stud:
-
             print(ch)  # prints one of the chosen rec in list
 
             rno = ch[0]

1 File handle/File handle binary/Update a binary file2.py

@@ -4,12 +4,11 @@
 
 
 def update():
-
     with open("studrec.dat", "rb+") as File:
         value = pickle.load(File)
         found = False
         roll = int(input("Enter the roll number of the record"))
-        
+
         for i in value:
             if roll == i[0]:
                 print(f"current name {i[1]}")

1 File handle/File handle binary/question 1 (elegible for remedial, top marks).py

@@ -6,8 +6,8 @@
 Write a function remcount( ) to count the number of students who need
  remedial class (student who scored less than 40 percent)
 
- 
- """
+
+"""
 # also find no. of children who got top marks
 
 import pickle

1 File handle/File handle text/counter.py

@@ -1,13 +1,13 @@
 """
-    Class resposible for counting words for different files:
-    - Reduce redundant code
-    - Easier code management/debugging
-    - Code readability
+Class resposible for counting words for different files:
+- Reduce redundant code
+- Easier code management/debugging
+- Code readability
 """
 
-class Counter:
 
-    def __init__(self, text:str) -> None:
+class Counter:
+    def __init__(self, text: str) -> None:
         self.text = text
 
         # Define the initial count of the lower and upper case.
@@ -16,20 +16,19 @@ def __init__(self, text:str) -> None:
         self.count()
 
     def count(self) -> None:
-
         for char in self.text:
             if char.lower():
                 self.count_lower += 1
             elif char.upper():
                 self.count_upper += 1
 
         return (self.count_lower, self.count_upper)
-    
+
     def get_total_lower(self) -> int:
         return self.count_lower
 
     def get_total_upper(self) -> int:
         return self.count_upper
 
     def get_total(self) -> int:
-        return self.count_lower + self.count_upper
+        return self.count_lower + self.count_upper

1 File handle/File handle text/file handle 12 length of line in text file.py

@@ -1,38 +1,38 @@
-
 import os
 import time
-file_name= input("Enter the file name to create:- ")
+
+file_name = input("Enter the file name to create:- ")
 
 print(file_name)
 
-def write_to_file(file_name):
 
+def write_to_file(file_name):
     if os.path.exists(file_name):
         print(f"Error: {file_name} already exists.")
         return
 
     with open(file_name, "a") as F:
-
         while True:
             text = input("enter any text to add in the file:- ")
-            F.write( f"{text}\n" )
+            F.write(f"{text}\n")
             choice = input("Do you want to enter more, y/n").lower()
             if choice == "n":
                 break
-
-def longlines():
 
-    with open(file_name, encoding='utf-8') as F:
+
+def longlines():
+    with open(file_name, encoding="utf-8") as F:
         lines = F.readlines()
-        lines_less_than_50 = list( filter(lambda line: len(line) < 50, lines ) )
+        lines_less_than_50 = list(filter(lambda line: len(line) < 50, lines))
 
         if not lines_less_than_50:
             print("There is no line which is less than 50")
         else:
             for i in lines_less_than_50:
                 print(i, end="\t")
 
+
 if __name__ == "__main__":
     write_to_file(file_name)
     time.sleep(1)
-    longlines()
+    longlines()

1 File handle/File handle text/input,output and error streams.py

@@ -4,13 +4,13 @@
 sys.stdout.write("Enter the name of the file")
 file = sys.stdin.readline()
 
-with open(file.strip(), ) as F:
-
+with open(
+    file.strip(),
+) as F:
     while True:
         ch = F.readlines()
-        for (i) in ch:  # ch is the whole file,for i in ch gives lines, for j in i gives letters,for j in i.split gives words
+        for i in ch:  # ch is the whole file,for i in ch gives lines, for j in i gives letters,for j in i.split gives words
             print(i, end="")
         else:
             sys.stderr.write("End of file reached")
             break
-

1 File handle/File handle text/question 2.py

@@ -1,35 +1,32 @@
-""" Write a method/function DISPLAYWORDS() in python to read lines
+"""Write a method/function DISPLAYWORDS() in python to read lines
  from a text file STORY.TXT,
  using read function
-and display those words, which are less than 4 characters. """
+and display those words, which are less than 4 characters."""
 
+print("Hey!! You can print the word which are less then 4 characters")
 
-print("Hey!! You can print the word which are less then 4 characters")        
 
 def display_words(file_path):
-
     try:
         with open(file_path) as F:
             words = F.read().split()
-            words_less_than_40 = list( filter(lambda word: len(word) < 4, words) )
+            words_less_than_40 = list(filter(lambda word: len(word) < 4, words))
 
             for word in words_less_than_40:
                 print(word)
-
-        return "The total number of the word's count which has less than 4 characters", (len(words_less_than_40)) 
-
+
+        return (
+            "The total number of the word's count which has less than 4 characters",
+            (len(words_less_than_40)),
+        )
+
     except FileNotFoundError:
         print("File not found")
 
+
 print("Just need to pass the path of your file..")
 
 file_path = input("Please, Enter file path: ")
 
 if __name__ == "__main__":
-
     print(display_words(file_path))
-
-
-
-
-

1 File handle/File handle text/question 5.py

@@ -5,24 +5,29 @@
 import os
 from counter import Counter
 
-print("You will see the count of lowercase, uppercase and total count of alphabets in provided file..")
+print(
+    "You will see the count of lowercase, uppercase and total count of alphabets in provided file.."
+)
 
 
 file_path = input("Please, Enter file path: ")
 
 if os.path.exists(file_path):
-    print('The file exists and this is the path:\n',file_path) 
+    print("The file exists and this is the path:\n", file_path)
 
 
 def lowercase(file_path):
     try:
-
         with open(file_path) as F:
             word_counter = Counter(F.read())
-
-            print(f"The total number of lower case letters are {word_counter.get_total_lower()}")
+
+            print(
+                f"The total number of lower case letters are {word_counter.get_total_lower()}"
+            )
             time.sleep(0.5)
-            print(f"The total number of upper case letters are {word_counter.get_total_upper()}")
+            print(
+                f"The total number of upper case letters are {word_counter.get_total_upper()}"
+            )
             time.sleep(0.5)
             print(f"The total number of letters are {word_counter.get_total()}")
             time.sleep(0.5)
@@ -31,8 +36,5 @@ def lowercase(file_path):
         print("File is not exist.. Please check AGAIN")
 
 
-
-
 if __name__ == "__main__":
-
     lowercase(file_path)

1 File handle/File handle text/question 6.py

@@ -3,14 +3,19 @@
 
 from counter import Counter
 
-def lowercase():
 
+def lowercase():
     with open("happy.txt") as F:
         word_counter = Counter(F.read())
-
-        print(f"The total number of lower case letters are {word_counter.get_total_lower()}")
-        print(f"The total number of upper case letters are {word_counter.get_total_upper()}")
+
+        print(
+            f"The total number of lower case letters are {word_counter.get_total_lower()}"
+        )
+        print(
+            f"The total number of upper case letters are {word_counter.get_total_upper()}"
+        )
         print(f"The total number of letters are {word_counter.get_total()}")
 
+
 if __name__ == "__main__":
     lowercase()

1 File handle/File handle text/question3.py

@@ -4,28 +4,27 @@
 
 import os
 import time
-file_name= input("Enter the file name to create:- ")
+
+file_name = input("Enter the file name to create:- ")
 
 # step1:
 print(file_name)
 
 
-
 def write_to_file(file_name):
-
     if os.path.exists(file_name):
         print(f"Error: {file_name} already exists.")
 
     else:
         with open(file_name, "a") as F:
-
             while True:
                 text = input("enter any text")
-                F.write(f"{text}\n") 
+                F.write(f"{text}\n")
 
                 if input("do you want to enter more, y/n").lower() == "n":
                     break
-
+
+
 # step2:
 def check_first_letter():
     with open(file_name) as F:
@@ -37,10 +36,12 @@ def check_first_letter():
         count_i = first_letters.count("i")
         count_m = first_letters.count("m")
 
-        print(f"The total number of sentences starting with I or M are {count_i + count_m}")
+        print(
+            f"The total number of sentences starting with I or M are {count_i + count_m}"
+        )
+
 
 if __name__ == "__main__":
-
     write_to_file(file_name)
     time.sleep(1)
     check_first_letter()

8_puzzle.py

@@ -1,5 +1,6 @@
 from queue import PriorityQueue
 
+
 class PuzzleState:
     def __init__(self, board, goal, moves=0, previous=None):
         self.board = board
@@ -35,10 +36,13 @@ def neighbors(self):
             if 0 <= nx < 3 and 0 <= ny < 3:
                 new_board = [row[:] for row in self.board]
                 new_board[x][y], new_board[nx][ny] = new_board[nx][ny], new_board[x][y]
-                neighbors.append(PuzzleState(new_board, self.goal, self.moves + 1, self))
+                neighbors.append(
+                    PuzzleState(new_board, self.goal, self.moves + 1, self)
+                )
 
         return neighbors
 
+
 def solve_puzzle(initial_board, goal_board):
     initial_state = PuzzleState(initial_board, goal_board)
     frontier = PriorityQueue()
@@ -59,6 +63,7 @@ def solve_puzzle(initial_board, goal_board):
 
     return None
 
+
 def print_solution(solution):
     steps = []
     while solution:
@@ -68,21 +73,14 @@ def print_solution(solution):
 
     for step in steps:
         for row in step:
-            print(' '.join(map(str, row)))
+            print(" ".join(map(str, row)))
         print()
 
+
 # Example usage
-initial_board = [
-    [1, 2, 3],
-    [4, 0, 5],
-    [7, 8, 6]
-]
-
-goal_board = [
-    [1, 2, 3],
-    [4, 5, 6],
-    [7, 8, 0]
-]
+initial_board = [[1, 2, 3], [4, 0, 5], [7, 8, 6]]
+
+goal_board = [[1, 2, 3], [4, 5, 6], [7, 8, 0]]
 
 solution = solve_puzzle(initial_board, goal_board)
 if solution: