def from_S3()

in s3_management/manage.py [0:0]

• 15 lines of code
• 5 McCabe index (conditional complexity)

    def from_S3(cls: Type[S3IndexType], prefix: str) -> S3IndexType:
        objects = []
        prefix = prefix.rstrip("/")
        for obj in BUCKET.objects.filter(Prefix=prefix):
            is_acceptable = any([path.dirname(obj.key) == prefix] + [
                match(
                    f"{prefix}/{pattern}",
                    path.dirname(obj.key)
                )
                for pattern in ACCEPTED_SUBDIR_PATTERNS
            ]) and obj.key.endswith(ACCEPTED_FILE_EXTENSIONS)
            if is_acceptable:
                sanitized_key = obj.key.replace("+", "%2B")
                objects.append(sanitized_key)
        return cls(objects, prefix)