Dictionaries – print only part of values

I only want the times that have nan beside them to be stored and printed, without the nan part. currently the output is this.

Id just like it so it prints 8:00, 15:00, 16:00, 17:00 for each day

my code is

free_times = {}
free_times.update(df3.drop_duplicates())

for key2 in free_times.values():
    print(key2) 

>Solution :

free_times.values() returns the values from the dictionary, not the keys. Use .items() to get both the keys and values, so you can check if it’s nan.

from math import isnan

for key2, value2 in free_times.items():
    if isnan(value2):
        print(key2)