Why don't HMAC SHA256 results match for PHP and PYTHON?

Question

PHP

It is necessary to redo the script in PYTHON, but the HASHES do not match. Help understand why
PHP

function createHash($data)
{
    $privateKey = 'Xahtc9ktbs5-t900NF04Kx2-xTFCByr2vBj-ZOtjgFLm7Um-8H08LLGOizt-U9ssAvXbOWZ-gefVZB2TXbA';

    $_data = array(
        'modelName' => isset($data['modelName']) ? $data['modelName'] : null,
        'calledMethod' => isset($data['calledMethod']) ? $data['calledMethod'] : null,
        'methodProperties' => isset($data['methodProperties']) ? $data['methodProperties'] : null,
    );

    return hash_hmac('sha256', http_build_query($_data), $privateKey);
}

$data = array();

        $data["modelName"] = "Mizol_Product";
        $data["calledMethod"] = "getProducts";
        $data["apiKey"] = 52542;
        $data['hash'] = createHash($data);

        echo '<pre>';
        print_r($data);
        echo '</pre>';

PYTHON

def create_hash(data):
    private_key = 'Xahtc9ktbs5-t900NF04Kx2-xTFCByr2vBj-ZOtjgFLm7Um-8H08LLGOizt-U9ssAvXbOWZ-gefVZB2TXbA'
    _data = {
        'modelName': data['modelName'] if data.get('modelName') else None,
        'calledMethod': data['calledMethod'] if data.get('calledMethod') else None,
        'methodProperties': data['methodProperties'] if data.get('methodProperties') else None,
    }
    return hmac.new(
        private_key.encode(),
        urllib.parse.urlencode(_data).encode(),
        hashlib.sha256
    ).hexdigest()


def make_request_data(model_name='Mizol_Product', called_method='getProducts', api_key=52542):
    data = {
        'modelName': model_name,
        'calledMethod': called_method,
        'apiKey': api_key,
    }
    data['hash'] = create_hash(data)
    print(data)
    return data

Result in PHP

Array
(
    [modelName] => Mizol_Product
    [calledMethod] => getProducts
    [apiKey] => 52542
    [hash] => 40a14879fd40f48c0a3618594f3d93b93a76423f62a0d3a305032d07bc8f2d5d
)

Result in PYTHON

{
    'modelName': 'Mizol_Product',
    'calledMethod': 'getProducts',
    'apiKey': 52542,
    'hash': '54f4538d59a11e936acbe2f23b100633d3961ef5a269855fbe6e399e8b28e82c'
}

Answer 1

Print it out
and
you will immediately see the difference. And the rule of good form is to add imports to the code.

Answer 2

Because the order in the associative array is different.