made python solution to a base converter

base_converter.py

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+# Function to check if the given number is a valid binary number (only contains '0' or '1')
+def is_valid_binary(number):
+    return all(char in '01' for char in number)
+
+# Function to check if the given number is a valid decimal number (contains only digits)
+def is_valid_decimal(number):
+    return number.isdigit()
+
+# Function to check if the given number is a valid hexadecimal number (valid hex characters)
+def is_valid_hexadecimal(number):
+    try:
+        # Try converting the input to an integer with base 16 (hexadecimal)
+        int(number, 16)
+        return True
+    except ValueError:
+        return False
+
+# Function to check if the given number is a valid octal number (only digits from 0-7)
+def is_valid_octal(number):
+    try:
+        # Try converting the input to an integer with base 8 (octal)
+        int(number, 8)
+        return True
+    except ValueError:
+        return False
+
+# Function to repeatedly prompt the user until a valid number for the specified input type is given
+def get_valid_input(input_type):
+    while True:  # Loop until valid input is provided
+        if input_type == 'binary':
+            number = input("Enter a binary number: ")
+            if is_valid_binary(number):  # Validate the binary input
+                return number  # Return valid binary number
+            else:
+                print("Invalid binary number. Please enter a valid binary number (only 0 and 1).")
+        elif input_type == 'decimal':
+            number = input("Enter a decimal number: ")
+            if is_valid_decimal(number):  # Validate the decimal input
+                return number  # Return valid decimal number
+            else:
+                print("Invalid decimal number. Please enter a valid decimal number.")
+        elif input_type == 'hexadecimal':
+            number = input("Enter a hexadecimal number: ")
+            if is_valid_hexadecimal(number):  # Validate the hexadecimal input
+                return number  # Return valid hexadecimal number
+            else:
+                print("Invalid hexadecimal number. Please enter a valid hexadecimal number.")
+        elif input_type == 'octal':
+            number = input("Enter an octal number: ")
+            if is_valid_octal(number):  # Validate the octal input
+                return number  # Return valid octal number
+            else:
+                print("Invalid octal number. Please enter a valid octal number.")
+
+# Function to convert the number from the specified input type to other number systems
+def convert_number(number, input_type):
+    if input_type == 'binary':
+        decimal_value = int(number, 2)  # Convert binary to decimal
+    elif input_type == 'decimal':
+        decimal_value = int(number)  # Already decimal, just convert to int
+    elif input_type == 'hexadecimal':
+        decimal_value = int(number, 16)  # Convert hexadecimal to decimal
+    elif input_type == 'octal':
+        decimal_value = int(number, 8)  # Convert octal to decimal
+
+    # Print the number in all formats: Decimal, Binary, Hexadecimal, and Octal
+    print(f"Decimal: {decimal_value}")
+    print(f"Binary: {bin(decimal_value)[2:]}")  # Convert to binary, strip '0b' prefix
+    print(f"Hexadecimal: {hex(decimal_value)[2:].upper()}")  # Convert to hex, strip '0x' and convert to uppercase
+    print(f"Octal: {oct(decimal_value)[2:]}")  # Convert to octal, strip '0o' prefix
+
+# Main function to control the flow of the program
+def main():
+    # Display the menu for selecting the input type
+    print("Choose the input type:")
+    print("1: Binary")
+    print("2: Decimal")
+    print("3: Hexadecimal")
+    print("4: Octal")
+
+    # Prompt the user to choose an input type
+    choice = input("Enter your choice (1/2/3/4): ")
+
+    # Depending on the user's choice, get a valid input for that number system and convert it
+    if choice == '1':
+        number = get_valid_input('binary')  # Get valid binary number
+        convert_number(number, 'binary')  # Convert and display
+    elif choice == '2':
+        number = get_valid_input('decimal')  # Get valid decimal number
+        convert_number(number, 'decimal')  # Convert and display
+    elif choice == '3':
+        number = get_valid_input('hexadecimal')  # Get valid hexadecimal number
+        convert_number(number, 'hexadecimal')  # Convert and display
+    elif choice == '4':
+        number = get_valid_input('octal')  # Get valid octal number
+        convert_number(number, 'octal')  # Convert and display
+    else:
+        print("Invalid choice")  # Handle invalid input type choice
+
+# Entry point of the program
+if __name__ == "__main__":
+    main()