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Mock S3 List Objects Paginator in Python

This code implements a mock S3 paginator that yields pages of object keys, mimicking the behavior of boto3's list_objects_v2 paginator for local testing.

s3 mock paginator
Python 
import json
from datetime import datetime, timezone


class MockS3Paginator:
    """A mock S3 list_objects_v2 paginator returning pages of keys."""

    def __init__(self, bucket, all_keys, page_size=1000):
        self.bucket = bucket
        self.all_keys = all_keys
        self.page_size = page_size

    def pagina…
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