study_tracker.py

study_times = {}
def add_session():
  while True:
        subject_ask = input("Enter the subject name: ").capitalize()

        if subject_ask.strip().isdigit():
            print("⚠️  Warning: You entered a number only. Please enter a valid subject name.")
        else:
            break
  while True:
      time_ask = input("Enter study time of that subject: ")
      if time_ask.isdigit():
          time_ask = int(time_ask)
          break
      else:
          print("⚠️  Please enter time in numbers.")
        
  with open ("study.txt", "a") as p:
      p.write(f"{subject_ask} : {time_ask} Hours\n")
  print(f"✅ Session saved, {subject_ask} : {time_ask} Hours")
      
def view_summary():
    with open("study.txt", "r") as f:
        content = f.read()
        print("--- Study Summary ---")
        print(content)
        print("~~~~~~~~~~~~~~~~~~")

def most_studied_and_total_time():
    with open("study.txt", "r") as file:
      for line in file:
            parts = line.split(":")
            subject = parts[0].strip()
            hours = int(''.join([x for x in parts[1] if x.isdigit()]))
            if subject in study_times:
              study_times[subject] += hours
            else:
               study_times[subject] = hours

    max_studied = max(study_times, key=study_times.get)
    total_time = sum(study_times.values())
    print(f"Your most studied subject is {max_studied}")
    print(f"Your total study time is {total_time} Hours")
        
def reset():
    with open("p.txt", "w") as f:
        pass
        
          
functions = ["1. Add sessions", "2. View study summary", "3. View most studied subject and total time", "4. Reset tracker"]
print("=" * 80)
print("Welcome to Study Tracker - By PranavGPT")
print("=" * 80)

print("Functions you can perfom(before further updates) are:")
for i in functions:
    print(i)

print("=" * 80)
while True:
        try:
         option = int(input("Enter which functions do you want to perform(Enter 1 - 4): "))
        except ValueError:
         print("⚠️ Please enter a number between 1 and 4.")
         continue
        if option not in [1, 2, 3, 4]:
            print("⚠️ Please enter a valid option (1-4).")
            continue

        if option == 1:
            print("Let add some study sessions...")
            add_session()
        elif option == 2:
            view_summary()
        elif option == 3:
            most_studied_and_total_time()
        elif option == 4:
            reset()
            print("✅ Tracker reset succesfull.")

        again = input("Do you want to perform any other functions(Yes / No): ")
        if again == "no":
            print("=" * 80)
            print("🙏 Thanks a lot for using our services")
            feed = input("Do you want to provide a feedback(Yes / No): ")
            if feed == "yes":
                feedback = input("Provide your feedback: ")
            print("Your support and feedback will give me motivation for upgrading this app in future times..🙏")
            print("=" * 80)
            break