How to pass function as parameter to another function? [duplicate]

Question

I have the code like below:

if text == 'today':
    date1, date2 = dt.today_()
    result, data = ga.get_sessions_today_data(user_id, date1, date2)
    result, data, caption = get_final_caption(result, data, date1, date2, 'hour', 'sessions')
    handle_result(chat_id, result, data, caption)
elif text == 'yesterday':
    date1, date2 = dt.yesterday()
    result, data = ga.get_sessions_today_data(user_id, date1, date2)
    result, data, caption = get_final_caption(result, data, date1, end_date, 'hour', 'sessions')
    handle_result(chat_id, result, data, caption)
...

The code is repeated many-many times, just dt.function() and ga.function() are different. How could I optimize the code?

Aaron Christiansen · Accepted Answer · 2016-03-19 17:15:40Z

7

You could make a dictionary containing the functions for each possibility of text. Don't put parentheses after the functions, because you don't want to call them:

options = {"today": dt.today_, "yesterday": dt.yesterday} # etc

Then, you could do this to replace your existing code:

date1, date2 = options[text]() # Get the correct function and call it
result, data = ga.get_sessions_today_data(user_id, date1, date2)
result, data, caption = get_final_caption(result, data, date1, date2, 'hour', 'sessions')
handle_result(chat_id, result, data, caption)

answered Mar 19, 2016 at 17:15

Aaron Christiansen

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