Getting Internal Server Error with latest of boto

[heldersepu]

how to reproduce the issue

import boto3
from moto import mock_aws


class Test_CUSTOM_ENABLE_S3_POLICY:
    @mock_aws
    def test_success2(self):
        client = boto3.client("s3", region_name="us-east-1")
        client.create_bucket(Bucket="test")
        client.put_bucket_policy(Bucket="test", Policy='{}')
        assert 1 == 1

happens with latest, if I hard code to older it works:

pytest
boto3 == 1.35.37
botocore == 1.35.37
moto >= 5.0.16.dev5

what actually happens

the test takes a lot longer as it is reaching to AWS

E botocore.exceptions.ClientError: An error occurred (500) when calling the PutBucketPolicy operation (reached max retries: 4): Internal Server Error

version of Moto

Name: moto
Version: 5.0.18

and
Successfully installed boto3-1.35.45 botocore-1.35.45

[bpandola]

I think this may be an issue with the latest version of botocore (see boto/botocore#3284).