schema.py

import json
from jsonschema import validate


str_schema = '''
{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "Product set",
    "type": "array",
    "items": {
        "title": "Product",
        "type": "object",
        "properties": {
            "id": {
                "description": "The unique identifier for a product",
                "type": "number"
            },
            "name": {
                "type": "string"
            }
        },
        "required": ["id", "name"]
    }
}
'''

str_p1 = '''
[
    {
        "id": 2,
        "name": "An ice sculpture"
    }
]
'''

str_p2 = '''
[
    {
        "id": 1,
        "name": "An ice"
    },
    {
        "id": 2,
        "name": "An ice sculpture"
    }
]
'''

str_p3 = '''
[
    {
        "id": 2,
        "name2": "An ice sculpture"
    }
]
'''


schema = json.loads(str_schema)
p1 = json.loads(str_p1)
validate(p1, schema)

p2 = json.loads(str_p2)
validate(p2, schema)

p3 = json.loads(str_p3)
validate(p3, schema)