Building Simple Projects in Python

In my quest to deepen my grasp of Python fundamentals, I embarked on a journey of creation, delving into the world of simple projects.

Project 1: A Simple Calculator

I chose a calculator as my first project because it’s straightforward and covers basic Python concepts like functions, user input, and conditional statements.

Step by Step

1. Declare Variables

   # Program Kalkulator Sederhana
   print("Kalkulator Sederhana")
   
   angka_pertama = int(input("Input angka pertama : "))
   angka_kedua = int(input("Input angka kedua : "))
   
   a = angka_pertama
   b = angka_kedua

   
   

2. Write the Function and Output Display

   def penjumlahan(a, b):
       return a + b
   
   def pengurangan(a, b):
       return a - b
   
   def perkalian(a, b):
       return a * b
   
   def pembagian(a, b):
       if a != 0 and b != 0:
           return round(a / b, 4)
       else:
           return "Bilangan tidak bisa dibagi 0"
   
   print("")
   print(f"Hasil Penjumlahan : {penjumlahan(a, b)}")
   print(f"Hasil Pengurangan : {pengurangan(a, b)}")
   print(f"Hasil Perkalian : {perkalian(a, b)}")
   print(f"Hasil Pembagian : {pembagian(a, b)}")

   
   

3. Running the Program

   Run the program in your terminal or IDE.

   

Project 2: Biodata

A simple program that emphasizes user input and then displays it again to the user.

Step by Step

1. Declare Variables for Input Data

   nama = input("Masukkan nama Anda : ")
   pekerjaan = input("Masukkan pekerjaan Anda : ")
   hobi = input("Masukkan hobi Anda : ")

   
   

2. Write the Output Display

   nama = input("Masukkan nama Anda : ")
   pekerjaan = input("Masukkan pekerjaan Anda : ")
   hobi = input("Masukkan hobi Anda : ")

   
   

3. Running the Program

   Run the program in your terminal or IDE.

   

Project 3: Graduation Status

If the minimum grade is met, then it will be passed

Step by Step

1. Declare Variable

   print("Cek Kelulusan")
   nilai = int(input("Masukkan nilai Anda : "))

   
   

2. Make some Condition

   Here are the rules:

   • If the score is over 80, the message "Selamat Anda Lulus!" will appear, which means you passed

   • If the score is below 80, you failed

   if nilai > 80:
       print("\nSelamat Anda Lulus!")
   else:
       print("\nMaaf Anda Belum Lulus. Silahkan Coba Lagi di Lain Kesempatan")

   
   

3. Running the Program

   Run the program in your terminal or IDE.

   

Project 4: Flat Shapes Calculator

This program calculates the area and perimeter of flat shapes based on the user's choice of flat shapes.

Step by Step

1. Create Function

   Here, I created 3 functions to calculate the area and perimeter of a square, rectangle, and isosceles triangle.

   def LuasPersegi():
       print("\nHitung Luas dan Keliling Persegi")
       a = int(input("Input Nilai Sisi : "))
       luas_persegi = a * a
       keliling_persegi = a * 4
       print("\nLuas Persegi :", luas_persegi)
       print("Keliling Persegi :", keliling_persegi)
   
   def LuasPersegiPanjang():
       print("\nHitung")
       a = int(input("Input Panjang : "))
       b = int(input("Input Lebar : "))
       luas_persegi_panjang = a * b
       keliling_persegi_panjang = (2 * a) + (2 * b)
       print("\nLuas Persegi Panjang :", luas_persegi_panjang)
       print("Keliling Persegi Panjang :", keliling_persegi_panjang)
   
   def LuasSegitiga():
       a = int(input("\nInput Alas : "))
       t = int(input("Input Tinggi : "))
       k = int(input("Input Panjang Kaki : "))
       luas_segitiga = 1/2 * a * t
       keliling_segitiga = a + (k * 2)
       print("\nLuas Segitiga :", luas_segitiga)
       print("Keliling Segitiga :", keliling_segitiga)

   
   

2. Create User Input

   The running flat calculation will be according to the user's choice.

   • If the user enters 1, then the square calculation will begin

   • If the user enters 2, then the rectangle calculation will begin

   • If the user enters 3, then the isosceles triangle calculation will begin.

   • If the user enters a number other than 1/2/3, the program will display the message "Input Invalid" and stop.

     print("Hitung Luas dan Keliling Bangun Datar")
     print("1. Persegi")
     print("2. Persegi Panjang")
     print("3. Segitiga Sama Sisi")
     pilihan = int(input("Pilih Bangun Datar 1/2/3:"))
     
     if pilihan == 1:
         LuasPersegi()
     elif pilihan == 2:
         LuasPersegiPanjang()
     elif pilihan == 3:
         LuasSegitiga()
     else:
         print("\nInput Invalid")

   
   

3. Running the Program

   Run the program in your terminal or IDE.

   User enters 1, then the square calculation will begin:

   

   
   

   User enters 2, then the rectangle calculation will begin:

   

   
   

   User enters 3, then the isosceles triangle calculation will begin:

   

   
   

   User enters a number other than 1/2/3, the program will display the message "Input Invalid" and stop.

   

Project 5: Calculate Total Payment

The last program calculates the total payment after the 25% discount.

Step by Step

1. Declare Variables

   Create variables to store the price of each item.

   nasi = 5000
   sate_ayam = 15000
   soto_kambing = 2000
   es_jeruk = 3000

   
   

2. Create the Calculation

   Calculate and display the total pay before and after discount

   total_tagihan = nasi + sate_ayam + soto_kambing + es_jeruk
   diskon = 25/100
   total_bayar = total_tagihan * diskon
   
   print("Total Pembelian Sebelum Diskon :", total_tagihan)
   print("Total Tagihan Setelah Diskon :", total_bayar)

   
   

3. Running the Program

   Run the program in your terminal or IDE.

   

Thank you for staying with me in this long tutorial. I hope you liked it and learned something new. If you have any comments or need more details don’t hesitate to type your thoughts.