[Python] pandas dataframe - return the value in iloc, or return zero if it does not exist

In using the iloc method for Pandas dataframe, I want to return zero if the value does not exist: (I have a query which it will always return either one row or an empty dataframe. I want the first left value when it exists)

import pandas as pd

mydict = {"col1":[1,2], "price":[1000,2000]}
df = pd.DataFrame(mydict)
query=df[df['price']>3000]

try:
print(query.iloc[0][0])
except BaseException:
print(0)

#print result: 0


Is there any better way or built-in method for iloc? I am thinking of something similar to the get method of Python dictionaries!

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