Problem with pandas

[palladium]

Sample data:

Output:
business_name
john chin elementary school
sutter pub and restaurant
sri thai cuisine
washington bakery & restaurant
brothers restaurant

The goal is to filter out which of these contain the word 'restaurant'.

I tried the following:

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import pandas as pd   a = sf_restaurant_health_violations['business_name'].to_frame() a['is_restaurant'] = a['business_name'].str.lower().isin(['restaurant']) print(a)

..and I get the following output:

Output:
business_name	is_restaurant
john chin elementary school	FALSE
sutter pub and restaurant	FALSE
sri thai cuisine	FALSE
washington bakery & restaurant	FALSE
brothers restaurant	FALSE

The desired output is:

Output:
john chin elementary school	FALSE
sutter pub and restaurant	TRUE
sri thai cuisine	FALSE
washington bakery & restaurant	TRUE
brothers restaurant	TRUE

Would appreciate some assistance here.

Thanks