Python: Can I use if else function when creating a new dataset?

I’m a beginner in python.

I need to find out what function should I use in order to create a new dataset (df2) for empty original dataset (df). For example,

df2 = df['count_days'].dt.days >= 1

When I don’t have no days to count in the dataset (empty data), I get an error.

Can I use if else statement to resolve this issue?
For example:

if df['count_days'].dt.days >= 1
   df2
else 
   print("No Data")

BTW – I sometimes would have empty dataset because there is no record available.

Thank you!

>Solution :

Yes you can use the if and else statements:

import pandas as pd

if df.empty:
    print("No Data")
else:
    df2 = df['count_days'].dt.days >= 1