This is a modified version of Julian Berman's implementation in python of JSON Schema.

The sole difference between Julian's version and mine is the introduction of support for $merge and strictProperties.

For more information on the original implementation, please see jsonschema.

$merge and strictProperties are proposed features of draft 5 JSON Schema. As of writing, no official draft 5 has been published, so at best this is a partial implementation of a future version of draft 5.

To find out more about these additions, please see the descriptions of the proposed new keywords, $merge and strictProperties.

Note that the above link actually describes merge rather than $merge. I used the latter in this implementation based on later discussions on the jsonschema mailing list.