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You are correct. Currently, it doesn't support realtime feed.
Please refer to this question.
I think the get_data fonction only authorize snapshots. Is it possible to have realtime feed?
@guillaume.lefur there is Elektron Websocket API which provides realtime streaming market data, and can be used with any programming language - including python. Currently it requires additional infrastructure components.
no Realtime data only delayed in c#
Is there a way to get the asset id (using python api) if I have the ISIN?
Python API runs indefinitely without a response
RealTime data with the new Eikon API 1.0.0?
Python API not returning all tick values