Sourcery refactored main branch

Binary_tree/tree.py

@@ -18,22 +18,18 @@ def add(self, data):
 
     def _add(self, data, node):
         if data < node.data:
-            if node.left is not None:
-                self._add(data, node.left)
-            else:
+            if node.left is None:
                 node.left = Node(data)
-        else:
-            if node.right is not None:
-                self._add(data, node.right)
             else:
-                node.right = Node(data)
+                self._add(data, node.left)
+        elif node.right is not None:
+            self._add(data, node.right)
+        else:
+            node.right = Node(data)
 
     # Method for find the data
     def find(self, data):
-        if self.root is not None:
-            return self._find(data, self.root)
-        else:
-            return None
+        return self._find(data, self.root) if self.root is not None else None
 
     def _find(self, data, node):
         if data == node.data:
@@ -55,6 +51,6 @@ def printTree(self):
     def _printTree(self, node):
         if node is not None:
             self._printTree(node.left)
-            print(str(node.data) + ' ')
+            print(f'{str(node.data)} ')
             self._printTree(node.right)
 

Caesar_Cipher/Caesar_cipher.py

@@ -25,17 +25,15 @@ def encrypt_string(self) -> str:
         return(output)
 
     def decrypt_string(self, string: str) -> str:
-        output = "" 
+        output = ""
         string = string.lower()
-        string = string.strip()
-        if string == "":
+        if not (string := string.strip()):
             return(self.blank_string)
-        else: 
-            for c in string:
-                for k,v in self.key.items():
-                    if v == c:
-                        output += k
-
+        for c in string:
+            for k,v in self.key.items():
+                if v == c:
+                    output += k
+
         return(output)
 
 if __name__ == "__main__":

Caterpillar_Game/Caterpillar.py

@@ -34,8 +34,7 @@ def outside_window():
     top_wall = t.window_height()/2
     bottom_wall = -t.window_height()/2
     (x,y) = caterpillar.pos()
-    outside = x < left_wall or x > right_Wall or y > top_wall or y < bottom_wall
-    return outside
+    return x < left_wall or x > right_Wall or y > top_wall or y < bottom_wall
 
 def game_over():
     caterpillar.color('yellow')

Chinese_FlashCard/app/models.py

@@ -31,7 +31,7 @@ def create_dictionary(datalist=data_list()) -> dict:
     """ slice every 4 items
     return :: dict with sinograms as key
     """
-    sino_list = datalist[0::4]
+    sino_list = datalist[::4]
     pinyin_list =  datalist[1::4]
     role_list = datalist[2::4]
     def_list =  datalist[3::4]

Converter/converter.py

@@ -5,19 +5,19 @@
 
 while res.lower() != "q":           #program loop
     res = res.strip().split(" ")
-    
-    try:        
+
+    try:    
         if len(res) == 1:
             print(options[res[0]])                                   #to display help menu
-            
+
         elif len(res) == 4:
             for i in res[3].split(','):
-                value = round( eval( "{} * {}['{}'] / {}['{}']".format(res[2],res[0],i,res[0],res[1]) ) , 6 )     #calculating
-                print("{} \t : {}".format(i,value))                               #displaying
-                 
+                value = round(eval(f"{res[2]} * {res[0]}['{i}'] / {res[0]}['{res[1]}']"), 6)
+                print(f"{i} \t : {value}")
+
         else:
             print("Invalid command")
-            
+
     except:
         print("Invalid command")
 

Crud_in_flask/main.py

@@ -74,7 +74,7 @@ def delete(id):
     conn.execute('DELETE FROM products WHERE id = ?', (id,))
     conn.commit()
     conn.close()
-    flash('"{}" was successfully deleted!'.format(products['title']))
+    flash(f""""{products['title']}" was successfully deleted!""")
     return redirect(url_for('index'))
 
 

Demerge_pdfs/demerging_pdfs.py

@@ -2,62 +2,54 @@
 import re
 def check_valid_filename(filename):
     invalid_chars = r'[/\\:*?"<>|]'
-    if re.search(invalid_chars, filename):
-        print('A file name cannot contain any of these characters / \\ : * ? " < > |')
-        return False
-    else:
+    if not re.search(invalid_chars, filename):
         return True
+    print('A file name cannot contain any of these characters / \\ : * ? " < > |')
+    return False
 
 # Note: here instead of Python.pdf you should give the whole path to the pdf if the pdf is not present in the same directory where python program is present
-merged_pdf = open('Python.pdf', mode='rb')
-
-
-pdf = PyPDF2.PdfFileReader(merged_pdf)
-
-(u, ctr, x) = tuple([0]*3)
-for i in range(1, pdf.numPages+1):
-
-    if u >= pdf.numPages:
-        print("Successfully done!")
-        exit(0)
-
-    while True:
-        name = input("Enter the name of the pdf: ")
-        if check_valid_filename(name) == True:
-            break
-
-    while True:
-        ctr = input(f"Enter the number of pages for {name}: ")
-        try:
-            ctr = int(ctr)
-            if ctr > 0:
+with open('Python.pdf', mode='rb') as merged_pdf:
+    pdf = PyPDF2.PdfFileReader(merged_pdf)
+
+    (u, ctr, x) = tuple([0]*3)
+    for _ in range(1, pdf.numPages+1):
+        if u >= pdf.numPages:
+            print("Successfully done!")
+            exit(0)
+
+        while True:
+            name = input("Enter the name of the pdf: ")
+            if check_valid_filename(name) == True:
                 break
-            else:
-                raise ValueError
-        except ValueError:
-            print("Page number must be a positive integer")
-
-    u += ctr
-    if u > pdf.numPages:
-        print('Limit exceeded! ')
-        break
 
-    # Note: In the braces you should give the desired path of where new files should be stored
-    base_path = '{}.pdf'
-    # If you want to store the new pdfs in the same directory, then leave the braces empty
-    path = base_path.format(name)
-    f = open(path, mode='wb')
-    pdf_writer = PyPDF2.PdfFileWriter()
-
-    for j in range(x, x+ctr):
-        page = pdf.getPage(j)
-        pdf_writer.addPage(page)
+        while True:
+            ctr = input(f"Enter the number of pages for {name}: ")
+            try:
+                ctr = int(ctr)
+                if ctr > 0:
+                    break
+                else:
+                    raise ValueError
+            except ValueError:
+                print("Page number must be a positive integer")
+
+        u += ctr
+        if u > pdf.numPages:
+            print('Limit exceeded! ')
+            break
 
-    x += ctr
+        # Note: In the braces you should give the desired path of where new files should be stored
+        base_path = '{}.pdf'
+        # If you want to store the new pdfs in the same directory, then leave the braces empty
+        path = base_path.format(name)
+        with open(path, mode='wb') as f:
+            pdf_writer = PyPDF2.PdfFileWriter()
 
-    pdf_writer.write(f)
-    f.close()
+            for j in range(x, x+ctr):
+                page = pdf.getPage(j)
+                pdf_writer.addPage(page)
 
+            x += ctr
 
-merged_pdf.close()
+            pdf_writer.write(f)
 print("Successfully done!")

Dice_Rolling_Stimulator/dice_stimulator.py

@@ -12,39 +12,39 @@
         print("|         |")
         print("===========")
 
-    if number == 2:
+    elif number == 2:
         print("===========")
         print("|         |")
         print("| O     O |")
         print("|         |")
         print("===========")
 
-    if number == 3:
+    elif number == 3:
         print("===========")
         print("|    O    |")
         print("|    O    |")
         print("|    O    |")
         print("===========")
-        
-    if number == 4:
+
+    elif number == 4:
         print("===========")
         print("| O     O |")
         print("|         |")
         print("| O     O |")
         print("===========")
-        
-    if number == 5:
+
+    elif number == 5:
         print("===========")
         print("| O     O |")
         print("|    O    |")
         print("| O     O |")
         print("===========")
-        
-    if number == 6:
+
+    elif number == 6:
         print("===========")
         print("| O     O |")
         print("| O     O |")
         print("| O     O |")
         print("===========")
-    
+
     x =  input("Press y to roll again ")

Dictionary/dictionary.py

@@ -7,18 +7,18 @@ def translate(word):
     if word in data:
         return data[word]
     elif word.title() in data:
-        return data[word.title()] 
+        return data[word.title()]
     elif word.upper() in data:
         return data[word.upper()]
     elif len(get_close_matches(word, data.keys())) > 0:
-        print("did you mean %s instead" %get_close_matches(word, data.keys())[0])
+        print(f"did you mean {get_close_matches(word, data.keys())[0]} instead")
         decide = input("press y for yes or n for no: ")
         if decide == "y":
             return data[get_close_matches(word, data.keys())[0]]
         elif decide == "n":
             return("pugger your paw steps on working keys ")
         else:
-            return("You have entered wrong input please enter just y or n")    
+            return("You have entered wrong input please enter just y or n")
     else:
         print("You have entered wrong keys. Try again")
 

Diff_Utility/diff.py

@@ -37,12 +37,11 @@
     if orignal_contents[line] == changed_contents[line]:
         # Ignore if the lines are same.
         continue
-    else:
-        # Display the changes on the respective lines of the files.
-        print(f"[bold red][-] Line {line + 1}:[/bold red] {orignal_contents[line]}", end = "")
-        print(f"[bold green][+] Line {line + 1}:[/bold green] {changed_contents[line]}")
-
-        # Show the additions [+] or deletions [-] for the file that is the largest.
-        if line == len(smallest_sloc) - 1:
-            for new_line in range(line + 1, len(largest_sloc)):
-                print(f"{symbol} Line {new_line + 1}:[/bold {color}] {largest_sloc[new_line]}")
+    # Display the changes on the respective lines of the files.
+    print(f"[bold red][-] Line {line + 1}:[/bold red] {orignal_contents[line]}", end = "")
+    print(f"[bold green][+] Line {line + 1}:[/bold green] {changed_contents[line]}")
+
+    # Show the additions [+] or deletions [-] for the file that is the largest.
+    if line == len(smallest_sloc) - 1:
+        for new_line in range(line + 1, len(largest_sloc)):
+            print(f"{symbol} Line {new_line + 1}:[/bold {color}] {largest_sloc[new_line]}")

Egg_Catcher/eggcatcher.py

@@ -30,10 +30,24 @@
 catcher = c.create_arc(catcher_start_x ,catcher_start_y ,catcher_start_x2,catcher_start_y2 , start=200 , extent = 140 , style='arc' , outline=catcher_color , width=3)
 
 score = 0
-score_text = c.create_text(10,10,anchor='nw' , font=('Arial',18,'bold'),fill='darkblue',text='Score : ' + str(score))
+score_text = c.create_text(
+    10,
+    10,
+    anchor='nw',
+    font=('Arial', 18, 'bold'),
+    fill='darkblue',
+    text=f'Score : {score}',
+)
 
 lives_remaning = 3
-lives_text = c.create_text(canvas_width-10,10,anchor='ne' , font=('Arial',18,'bold'),fill='darkblue',text='Lives : ' + str(lives_remaning))
+lives_text = c.create_text(
+    canvas_width - 10,
+    10,
+    anchor='ne',
+    font=('Arial', 18, 'bold'),
+    fill='darkblue',
+    text=f'Lives : {lives_remaning}',
+)
 
 eggs = []
 
@@ -57,13 +71,13 @@ def egg_dropped(egg):
     c.delete(egg)
     lose_a_life()
     if lives_remaning == 0:
-        messagebox.showinfo('GAME OVER!' , 'Final Score : ' + str(score))
+        messagebox.showinfo('GAME OVER!', f'Final Score : {str(score)}')
         win.destroy()
 
 def lose_a_life():
     global lives_remaning
     lives_remaning -= 1
-    c.itemconfigure(lives_text , text='Lives : ' + str(lives_remaning))
+    c.itemconfigure(lives_text, text=f'Lives : {lives_remaning}')
 
 def catch_check():
     (catcher_x,catcher_y,catcher_x2,catcher_y2) = c.coords(catcher)
@@ -80,7 +94,7 @@ def increase_score(points):
     score += points
     egg_speed = int(egg_speed * difficulty_factor)
     egg_interval = int(egg_interval * difficulty_factor)
-    c.itemconfigure(score_text , text='Score : ' + str(score))
+    c.itemconfigure(score_text, text=f'Score : {str(score)}')
 
 def move_left(event):
     (x1,y1,x2,y2) = c.coords(catcher)

Email Slicer/EmailSlicer.py

@@ -4,16 +4,13 @@ def isValidEmail(email):
 
     # Regular expression for validating an Email
     regex = r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b'
-
-    if(re.fullmatch(regex, email)):
-        return True
-    else:
-        return False
+
+    return bool((re.fullmatch(regex, email)))
 
 email = input("Enter your email id - ")
 
 if isValidEmail(email):
-    username = email[0:email.index('@')]
+    username = email[:email.index('@')]
     domain = email[email.index('@')+1: ]
     print("Username - ", username)
     print("Domain - ", domain)