Merge branch 'master' of github.com:alizain/ulid

Author: alizain

README.md

@@ -81,6 +81,7 @@ From the community!
 | [PowerShell](https://github.com/PetterBomban/posh-ulid) | [PetterBomban](https://github.com/PetterBomban) |
 | [Python](https://github.com/mdipierro/ulid) | [mdipierro](https://github.com/mdipierro) |
 | [Python](https://github.com/ahawker/ulid) | [ahawker](https://github.com/ahawker) | ✓ |
+| [Python](https://github.com/mdomke/python-ulid) | [mdomke](https://github.com/mdomke) | ✓ |
 | [Ruby](https://github.com/rafaelsales/ulid) | [rafaelsales](https://github.com/rafaelsales) |
 | [Rust](https://github.com/mmacedoeu/rulid.rs) | [mmacedoeu](https://github.com/mmacedoeu/rulid.rs) | ✓ |
 | [Rust](https://github.com/dylanhart/ulid-rs) | [dylanhart](https://github.com/dylanhart) | ✓ |

index.js

@@ -81,18 +81,18 @@ function factory(prng) {
 
 /* istanbul ignore next */
 function _prng(root) {
+  var crypto = root && (root.crypto || root.msCrypto)
 
-  if (root) {
+  if (crypto) {
     try {
-      var crypto = root.crypto || root.msCrypto
       return function() {
         return crypto.getRandomValues(new Uint16Array(1))[0] / 0xFFFF
       }
     }
     catch (e) {}
   } else {
     try {
-      var crypto = require("crypto")
+      crypto = require("crypto")
       return function() {
         return crypto.randomBytes(2).readUInt16LE() / 0xFFFF
       }