Convert a `pandas.DataFrame` to a generator of ElasticSearch actions to be passed to a bulk helper

pandas_to_elasticsearch.py

def pandas_to_elasticsearch(df):
    """
    Generator that converts `pandas.DataFrame` rows into ElasticSearch actions
    """
    # ElasticSearch will raise an exception on `NaN` values
    df = df.dropna()
    for i, row in df.iterrows():
        action = {
            '_op_type': 'index',
            '_index': 'my_index',
            '_type': 'my_doctype',
            #'_id': row['some_pk'],
            **row.to_dict()
            }
        yield action