#slowniki

import pprint

import json



gra = {"nazwa_gry" : "CS",

       "data_wydania" : 1999,

       "wydawca" : "valve",

       "gatunek" : "strzelanka"}





print(gra["nazwa_gry"])

print(gra.get("nazwa_gry"))



#print(gra["nazwa_gy"])

#print(gra.get("nazwa_gy"))



for value in gra.values():

    print(value)



for key in gra.keys():

    print(key)



for item in gra.items():

   print(item)



gra.setdefault("PEGI", 18)

print(gra)



delated = gra.pop("wydawca")

print(delated)

print(gra)



last_item = gra.popitem()

print(last_item)

print(gra)



del gra["gatunek"]

print(gra)



#gra.clear()

#print(gra)



print(gra)

pprint.pprint(gra)



with open("l1.json","r" ) as file:

    spis_gier = json.load(file)

spis_gier["spis_gier"].append(gra)

pprint.pprint(spis_gier["spis_gier"])



with open("l1_2.json", "w") as file:

   json.dump(spis_gier, file,  indent = 4, sort_keys = True)



dict1 = {"a" : 4, "b": 3}

dict2 = {"c" : 1, "d": 2}

dict3 = {**dict1, **dict2}

dict4 = dict1 | dict2

print(dict3)

print(dict4)





fib_json = {0:0, 1:1}



def fibonacci(n):

    if n in fib_json:

        return fib_json[n]

    else:

        result = fibonacci(n-1) + fibonacci(n-2)

        fib_json[n] = result

        return result



fibonacci(20)

for item in fib_json.items():

    print(item)