Learning Python-Basic course: Day 18, Dictionaries in Python

AatmajProfileDictionary={"name":"Aatmaj","Hobby":"teaching","Commits":700}

a=[] #lista=() #tuplea={}#dictionary

>>> hardware={    "Brand": "Dell",    "Model": 2430,    "Year":  "2020"}>>> print(hardware) #prints the value of the dictionary{'Brand': 'Dell', 'Model': 2430, 'Year': '2020'}>>> print(hardware["Model"])2430>>> print(hardware.get("Model"))2430>>> hardware["Year"]=2021 #Changing the value of the dictionary>>> print(hardware){'Brand': 'Dell', 'Model': 2430, 'Year': 2021}>>> print(hardware.pop("Model"))2430>>> print(hardware){'Brand': 'Dell', 'Year': 2021}>>> hardware["Model"]="Lenovo">>> hardware["Year"]=2019>>> print(hardware.popitem()) #popitem returns the last value entered('Model', 'Lenovo')>>> print(hardware){'Brand': 'Dell', 'Year': 2019}>>> for y in hardware:...     print(y)#Corresponds to each key...BrandYear>>> for x in hardware:...      print(hardware[x])#refers to the value...Dell2019>>> for z in hardware.values():...      print(z)...Dell2019>>> hardware.clear() #Cleares the dictionary (not delete)>>> print(hardware){}>>> print(hardware["Price"])#trying to remove element which is not presentTraceback (most recent call last):  File "<stdin>", line 1, in <module>KeyError: 'Price'

hardware={    "LAPTOP":{"Brand": "Dell","Model": 2430,"Year":  "2020"},    "DESKTOP":{"Brand":"Lenovo","Model":8877,"Warranty": 2},    "TABLET":{"Brand":"Apple", "price":"3000$"}}print(hardware)print(hardware["TABLET"])print(hardware["LAPTOP"]["Model"]) #Note the syntax

{'TABLET': {'price': '3000$', 'Brand': 'Apple'}, 'LAPTOP': {'Model': 2430, 'Brand': 'Dell', 'Year': '2020'}, 'DESKTOP': {'Model': 8877, 'Brand': 'Lenovo', 'Warranty': 2}}{'price': '3000$', 'Brand': 'Apple'}2430

Please enter student name peterPlease enter marks 13Please enter student name johnPlease enter marks 32Please enter student name pappuPlease enter marks 5Please enter student name bobPlease enter marks 7Please enter student name minaPlease enter marks 32{'peter': 13, 'john': 32, 'pappu': 5, 'mina': 32, 'bob': 7}