How to generate a random 4 digit number not starting with 0 and having unique digits in python?

How to generate a random 4 digit number not starting with 0 and having unique digits in python?

You can generate a random 4-digit number with unique digits that doesn't start with 0 using the random module in Python. Here's one way to achieve this:

import random def generate_unique_number(): while True: number = random.sample(range(1, 10), 4) # Exclude 0 and get 4 unique digits generated_number = ''.join(map(str, number)) # Convert list to string if int(generated_number) >= 1000: # Ensure the number is 4 digits return generated_number unique_number = generate_unique_number() print("Generated unique number:", unique_number)

In this example, the generate_unique_number() function repeatedly generates random lists of 4 unique digits (excluding 0) until a number greater than or equal to 1000 is obtained. The digits are then joined together to form a string representing the unique 4-digit number.

Keep in mind that if you run this code repeatedly, there's a chance that it might take some time to find a suitable number that meets the criteria, especially if many unique numbers have already been generated.

Examples

  1. How to generate a random 4-digit number in Python without leading zero and with unique digits?

    • Description: This query seeks to understand how to generate a random 4-digit number in Python, ensuring it doesn't start with zero and contains unique digits.
    import random # Generate a random 4-digit number without leading zero and with unique digits while True: number = random.sample(range(1, 10), 4) if number[0] != 0: break random_number = ''.join(map(str, number)) print("Random 4-digit number:", random_number)

  2. How to create a random 4-digit number in Python with unique digits and no leading zero?

    • Description: This query explores generating a random 4-digit number in Python, ensuring it doesn't start with zero and all its digits are unique.
    import random # Generate a random 4-digit number with unique digits and without leading zero while True: number = random.sample(range(10), 4) if number[0] != 0: break random_number = ''.join(map(str, number)) print("Random 4-digit number:", random_number)

  3. How to generate a 4-digit number in Python with no repeating digits and not starting with 0?

    • Description: This query focuses on generating a random 4-digit number in Python, ensuring all digits are unique and the number doesn't start with zero.
    import random # Generate a random 4-digit number without repeating digits and without leading zero while True: number = random.sample(range(10), 4) if number[0] != 0: break random_number = ''.join(map(str, number)) print("Random 4-digit number:", random_number)

  4. How to create a 4-digit random number in Python with no leading zero and unique digits?

    • Description: This query investigates generating a random 4-digit number in Python, ensuring it starts with a non-zero digit and all digits are unique.
    import random # Generate a random 4-digit number with unique digits and without leading zero while True: number = random.sample(range(1, 10), 4) random.shuffle(number) random_number = ''.join(map(str, number)) if random_number[0] != '0': break print("Random 4-digit number:", random_number)

  5. How to generate a random 4-digit number in Python with no repeated digits and non-zero first digit?

    • Description: This query explores generating a random 4-digit number in Python, ensuring all digits are unique and the number starts with a non-zero digit.
    import random # Generate a random 4-digit number without repeating digits and with non-zero first digit while True: number = random.sample(range(1, 10), 4) random.shuffle(number) random_number = ''.join(map(str, number)) if random_number[0] != '0': break print("Random 4-digit number:", random_number)

  6. How to create a random 4-digit number in Python without leading zero and with unique digits?

    • Description: This query focuses on generating a random 4-digit number in Python, ensuring it doesn't start with zero and all its digits are unique.
    import random # Generate a random 4-digit number without leading zero and with unique digits while True: number = random.sample(range(1, 10), 4) if number[0] != 0: break random_number = ''.join(map(str, number)) print("Random 4-digit number:", random_number)

  7. How to generate a random 4-digit number in Python with unique digits and no leading zero?

    • Description: This query explores generating a random 4-digit number in Python, ensuring it doesn't start with zero and all its digits are unique.
    import random # Generate a random 4-digit number with unique digits and without leading zero while True: number = random.sample(range(10), 4) if number[0] != 0: break random_number = ''.join(map(str, number)) print("Random 4-digit number:", random_number)

  8. How to create a 4-digit random number in Python with no leading zero and unique digits?

    • Description: This query investigates generating a random 4-digit number in Python, ensuring it starts with a non-zero digit and all digits are unique.
    import random # Generate a random 4-digit number with unique digits and without leading zero while True: number = random.sample(range(1, 10), 4) random.shuffle(number) random_number = ''.join(map(str, number)) if random_number[0] != '0': break print("Random 4-digit number:", random_number)

  9. How to generate a random 4-digit number in Python with unique digits and non-zero first digit?

    • Description: This query explores generating a random 4-digit number in Python, ensuring it starts with a non-zero digit and all its digits are unique.
    import random # Generate a random 4-digit number with unique digits and non-zero first digit while True: number = random.sample(range(1, 10), 4) random.shuffle(number) random_number = ''.join(map(str, number)) if random_number[0] != '0': break print("Random 4-digit number:", random_number)

  10. How to create a random 4-digit number in Python without leading zero and with unique digits?

    • Description: This query focuses on generating a random 4-digit number in Python, ensuring it doesn't start with zero and all its digits are unique.
    import random # Generate a random 4-digit number without leading zero and with unique digits while True: number = random.sample(range(1, 10), 4) if number[0] != 0: break random_number = ''.join(map(str, number)) print("Random 4-digit number:", random_number)

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