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Nano ID

CircleCI

A tiny, secure, URL-friendly, unique string ID generator for Python.

Installation

pip install nanoid

Usage

Normal

The main module uses URL-friendly symbols (A-Za-z0-9_-) and returns an ID with 21 characters (to have a collision probability similar to UUID v4).

from nanoid import generate

generate() # => NDzkGoTCdRcaRyt7GOepg

Symbols -,.() are not encoded in the URL. If used at the end of a link they could be identified as a punctuation symbol.

If you want to reduce ID length (and increase collisions probability), you can pass the length as an argument.

from nanoid import generate

generate(size=10) # => "IRFa-VaY2b"

Don’t forget to check the safety of your ID length in ID collision probability calculator.

Custom Alphabet or Length

If you want to change the ID's alphabet or length you can use the internal generate module.

from nanoid import generate

generate('1234567890abcdef', 10) # => "4f9zd13a42"

Non-secure API is also available:

from nanoid import non_secure_generate

non_secure_generate('1234567890abcdef', 10)

Tools

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Changelog

Credits