Method exists

django/core/files/storage/base.py:150–157

Return True if a file referenced by the given name already exists in the storage system, or False if the name is available for a new file.

(self, name)

        )

    def exists(self, name):
        """
        Return True if a file referenced by the given name already exists in
        the storage system, or False if the name is available for a new file.
        """
        raise NotImplementedError(
            "subclasses of Storage must provide an exists() method"
        )

    def listdir(self, path):
        """