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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def zenodo_harvest_url(community_name, format='oai_datacite3'):
 """Build a URL for the Zenodo Community's metadata. Parameters community_name : str Zenodo community identifier. format : str OAI-PMH metadata specification name. See https://zenodo.org/dev. Currently on ``oai_datacite3`` is supported. Returns ------- url : str OAI-PMH metadata URL. """

    template = 'http://zenodo.org/oai2d?verb=ListRecords&' \
               'metadataPrefix={metadata_format}&set=user-{community}'
    return template.format(metadata_format=format,
                           community=community_name)