Six-Digit OTP Generator

Easy ⏱ 8 min 79% acceptance ★★★★★ 4.9

Write make_otp(rng=None) returning a 6-character string of digits. Use the random module's choices over the digit characters; accept an optional pre-seeded random.Random instance for testability, defaulting to the module-level functions.

Examples

Example 1

Input

make_otp(random.Random(1))

Output

a deterministic 6-digit string like '134878'

Explanation

Seeding makes the output reproducible for tests.

Constraints

Exactly 6 characters, all digits.
Leading zeros are allowed — hence a string.

Topics

Modules & Packagesrandom

Companies

PayPalRazorpayHDFC Bank

Hints

Hint 1

''.join(choices('0123456789', k=6)).

Hint 2

rng = rng or random — both expose .choices.

← Circle Math with the math Module Top-K Items via collections.Counter →

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