Pollution level using dictionaries

[Terafy]

whoops indent* this happens when you have 4 hours sleep

def number_of_polluted_days(januar):
    k = {}
    print('if you used sum(pollution) what are you really summing?')
    for day, data in januar.items():
        print('Day:',day)
        for city, pollution in data.items():
            #d = ['Texas', 'Moscow', 'Berlin', 'Athens']
            if city not in k:
                k[city]=0
            if city in k:
                k[city] += 1
                print(city,pollution) #if you use sum(pollution)

    #how far did you indent this avg? Depending on the indent might get looped
            #avg[city]= sum(pollution)/float(len(pollution))
        #avg[city]= sum(pollution)/float(len(pollution))
    #avg[city]= sum(pollution)/float(len(pollution))

    
    print(k) #Shows the number of time a city appears.

    return k
 
januar = {
1: {'Texas': 126, 'Moscow': 64, 'Berlin': 57, 'Athens': 35,},
2: {'Texas': 53, 'Moscow': 56, 'Berlin': 58,},
3: {'Texas': 34, 'Moscow': 71, 'Berlin': 48, 'Athens': 55,}
}
 
number_of_polluted_days(januar)