Python_Codes/Python_6Dictionary.py at main · Om-Bacchuwar99/Python_Codes · GitHub

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"""
Dictionary
Powerful and flexible datatype, which the collection of keyvalues
used to store data and also access that data


Syntax :

var_name = {} -----> empty dictionary

var_name = {"key":value, "key2":value2 }


just for example consider a hypothetical scenario where we own a restaurant
Dosa         60/-
Cold Coffee  80/-
Paneer tikka 100/-
Idli         120/-


Operations in Dictionary

"""
#Step 1 : Initialize a dictionary

menu = {} #empty

#Step 2 : How to add element

menu["Dosa"] = 60
menu["Cold Coffee"] = 80
menu["Paneer Tikka"] = 100
menu["Idli"] = 120
print(menu)

#Step 3 : How to remove a element

#del menu["Cold Coffee"]

#Step 4 : How to access the key
menu["Palak Paneer"] = 160


#print(PP_price)

#Step 5 : How to update
menu["Palak Paneer"] = 180
PP_price = menu["Palak Paneer"]
print(PP_price)

#Step 6 : How to clear a Dictionary
#menu.clear()


#Step 7 : How to find the length of the dictionary namely menu.
print(len(menu))

print(menu)

menu2 = {'Juice':30,'water':20,'Russian':6000}
print(menu2)
print(len(menu2))