if statement whereby the condition values in list

I am trying to create an if statement that based on the pre-written script or conditions that I put in the list. It contains dictionary whereby key is the value that I am going to insert into cell if fulfill the condition. Just have a simple condition here but it could be based on 2 or more fields. It seems not working in the sample code below. It there any thing that I miss? Thanks

'''
import pandas as pd

def main():
    df = pd.DataFrame({'Column_A': ['AAA','AAA','ABC','CDE'],
                  'checked': [0,0,1,0],
                  'duplicate': [True, True, False, False]})

    simple_rules = [{'rollover': "(df['checked'] > 0)"}, {'mm_placement': "(df['checked'] == 1)"}]

    df['status'] = ''
    for rule in simple_rules:

        for k, v in rule.items():
            for i in range(len(df)):
                if v:
                    df.at[i, 'status'] = k

    print(df)

if __name__ == '__main__':
    main()

'''