Add files inside Python (module1)

Python (module1)/Calculator (tkinter).py

+import tkinter as tk
+import re
+
+window = tk.Tk()
+window.grid_columnconfigure(0, weight=1)
+window.title("Calculator")
+window.geometry("400x600")
+
+window.grid_rowconfigure(0, weight=1)
+window.grid_columnconfigure(0, weight=1)
+buttons = [
+    ("C", 2, 0),              ("^", 2, 2), ("Del", 2, 3),
+    ("7", 3, 0), ("8", 3, 1), ("9", 3, 2), ("/", 3, 3),
+    ("4", 4, 0), ("5", 4, 1), ("6", 4, 2), ("*", 4, 3),
+    ("1", 5, 0), ("2", 5, 1), ("3", 5, 2), ("-", 5, 3),
+    ("0", 6, 0), (".", 6, 1), ("=", 6, 2), ("+", 6, 3),
+]
+
+temp_inp = []
+last_result = None
+
+label = tk.Label(window, text = '',font=("Arial", 20),anchor="e",bg="white")
+label.grid(column=0, row=0, columnspan=4,sticky="nsew",padx=5, pady=5)
+
+label2 = tk.Label(window, text='', font=("Arial", 15), bg="white")
+label2.grid(row=1, column=0, columnspan=4, sticky="nsew", padx=5, pady=5)
+
+def handle_expression(expr: str) -> str:
+    """Remove leading zeros from integers like 06 → 6."""
+    expr = expr.replace("^", "**")
+    return re.sub(r"\b0+(\d+)(?!\.)", r"\1", expr)
+
+def store_inp(num):
+    global last_result 
+
+    if num == "Del":
+        if temp_inp:
+            temp_inp[-1] = temp_inp[-1][:-1]  # remove last char
+            if temp_inp[-1] == "":            # if empty, remove it
+                temp_inp.pop()
+
+    elif num == "C":
+        temp_inp.clear()
+        last_result = None
+
+    elif num.isdigit() or num == ".":  # number or decimal
+        if temp_inp and temp_inp[-1].replace('.', '').isdigit():
+            # If user tries to add another ".", block it
+            if num == "." and "." in temp_inp[-1]:
+                pass  # ignore extra decimal
+            else:
+                temp_inp[-1] += num
+        else:
+            if num == ".":
+                temp_inp.append("0.")  
+            else:
+                temp_inp.append(num)
+
+    elif num in ["+", "-", "*", "/","^"]:
+        if temp_inp:
+            if temp_inp[-1] in ["+", "-", "*", "/", "^"]:
+                temp_inp[-1] = num   # replace operator
+            else:
+                temp_inp.append(num) # add operator
+
+    elif num == "=":
+        expr = "".join(temp_inp)
+        expr = handle_expression(expr)
+
+        try:
+            last_result = eval(expr)
+            print(last_result)
+            temp_inp.clear()
+            temp_inp.append(str(last_result))   # reuse same list
+        except ZeroDivisionError:
+            label.config(text="Divide by 0 Error")
+            # label2.config(text="Divide by 0 Error")
+            temp_inp.clear()
+            return
+
+        except Exception as e:
+            print("Error")
+            print(e)
+            temp_inp.clear()
+            return
+    else:
+        temp_inp.append(num)
+        print("else called ")
+
+    label.config(text="".join(temp_inp))
+    expr = "".join(temp_inp)
+    expr = handle_expression(expr)
+
+    try:
+        last_result = eval(expr)
+        label2.config(text=str(last_result))
+    except ZeroDivisionError:
+        label2.config(text="Divide by 0 Error")
+    except Exception:
+        # if the expression is incomplete (like "9+"), just clear label2
+        label2.config(text=str(last_result))
+
+for (num,row,col) in buttons:
+    btn = tk.Button(window,command=lambda num=num: store_inp(num), text=num, width=5)
+    btn.grid(column=col, row=row, padx=3, pady=3, ipadx=5, ipady=5, sticky="nsew")
+
+# Make all columns expand equally
+for i in range(4):
+    window.grid_columnconfigure(i, weight=1)
+
+window.mainloop() 
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Python (module1)/File_parser.py

+import argparse
+import csv
+import json
+
+def handle_file(csv_path,json_path,indent):
+    with open(csv_path,'r') as f:
+        reader = csv.DictReader(f)
+        data = list(reader)
+    
+    with open(json_path,'w') as f:
+        json.dump(data,f,indent = indent)
+
+parser = argparse.ArgumentParser(description="My File Parser")
+parser.add_argument("csv_path",help="Path to the CSV file")
+parser.add_argument("json_path",help="Path to the JSON file")
+parser.add_argument("--indent",help="Indentation for JSON file",default=4,type=int)
+args = parser.parse_args()
+handle_file(args.csv_path , args.json_path,args.indent)
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Python (module1)/Student manager.py

+class Student :
+    def __init__(self,name,roll_no,age,city):
+        self.name = name
+        self.roll_no = roll_no
+        self.age = age
+        self.city = city
+    
+    def display_info(self):
+        print(f"Name = {self.name}")
+        print(f"Roll No = {self.roll_no}")
+        print(f"Age = {self.age}")
+        print(f"City = {self.city}")
+
+class StudentManager:
+
+    def __init__(self):
+        self.students = {}
+
+    def add_student(self,student):
+
+        if student.roll_no not in self.students:
+            self.students[student.roll_no] = student
+            print("✅ Student added successfully.")
+        else:
+            print("⚠️   Student with this roll number already exists.")
+
+    def update_student(self,roll_no,city):
+        if roll_no not in self.students:
+            print("⚠️ Student with this roll number does not exist.")
+        else:
+            self.students[roll_no].city = city
+            print("✅ City updated successfully.")
+
+    def delete_student(self,roll_no):
+        if roll_no not in self.students:
+           print("⚠️ Student with this roll number does not exist.")
+
+        else:
+            del self.students[roll_no]
+            print("✅ Student deleted successfully.")
+
+    def display_student(self,roll_no):
+        if roll_no not in self.students:
+            print("⚠️ Student with this roll number does not exist.")
+        else:
+            self.students[roll_no].display_info()
+
+    def display_all_student(self):
+        for i,j in self.students.items():
+            j.display_info()
+            print("--------------")
+
+system = StudentManager()
+
+def safe_input(message):
+    while True:
+        try:
+            return int(input(message))
+        except ValueError:
+            print("⚠️ Invalid input. Please enter a number.")
+
+while True:
+    print("\n===== Student Management System =====")
+    print("1. Add Student")
+    print("2. Update Student")
+    print("3. Delete Student")
+    print("4. Display All Students")
+    print("5. Exit")
+
+    print("")
+    choice = input("Enter your choice: ")
+    print("")
+
+    try:
+        if choice == "1":
+            name = input("Enter name: ")
+            roll_no = safe_input("Enter Roll No: ")
+            age = safe_input("Enter age: ")
+            city = input("Enter city: ")
+            s = Student(name, roll_no, age, city)
+            system.add_student(s)
+
+        elif choice == "2":
+            roll_no = int(input("Enter roll no to update: "))
+            city = input("Enter new city: ")
+            system.update_student(roll_no, city)
+            print("Updated student details:")
+            system.display_student(roll_no)
+
+        elif choice == "3":
+            roll_no = int(input("Enter the roll no to delete: "))
+            system.delete_student(roll_no)
+
+        elif choice == "4":
+            print("Displaying all students:")
+            system.display_all_student()
+
+        elif choice == "5":
+            print("👋 Exiting Student Management System. Goodbye!")
+            break
+
+        else:
+            print("❌ Invalid choice. Please try again.")
+
+    except ValueError:
+        print("⚠️ Invalid input. Please enter the correct data type.")
+        pass
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