How to parse CSV in a specific order?

Question

Python

There is a goal to parse the CSV database in the following order:
There are three columns: name, phone number, order number. You need to go through the column of phone numbers, and if the number is in a certain list, then you need to take the data of the entire line where this number was.
My implementation:

wishlist = []
df = pandas.read_csv('db.csv', sep=';')
for number in df['phone_numbers']:
    if number in wishlist:
        print(f"{df{'user_name']}, {df['order_id']}, {df['phone_number']}")

but the code does not start parsing all the lines, does not display the number, and also returns to the beginning all the time.
What could be wrong?

Answer 1

print(df.loc[df['phone_number'].isin(wishlist)])