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python dictionary

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Msk SK answered on November 27, 2019 Popularity 10/10 Helpfulness 2/10

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human = {
  "code": "Python",
  "name": "John",
  "age": 32
}

print(human["age"])
#32 :D

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Contributed on May 22 2022

Msk SK

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221

#Creating dictionaries
dict1 = {'color': 'blue', 'shape': 'square', 'volume':40}
dict2 = {'color': 'red', 'edges': 4, 'perimeter':15}

#Creating new pairs and updating old ones
dict1['area'] = 25 #{'color': 'blue', 'shape': 'square', 'volume': 40, 'area': 25}
dict2['perimeter'] = 20 #{'color': 'red', 'edges': 4, 'perimeter': 20}

#Accessing values through keys
print(dict1['shape'])

#You can also use get, which doesn't cause an exception when the key is not found
dict1.get('false_key') #returns None
dict1.get('false_key', "key not found") #returns the custom message that you wrote 

#Deleting pairs
dict1.pop('volume')

#Merging two dictionaries
dict1.update(dict2) #if a key exists in both, it takes the value of the second dict
dict1 #{'color': 'red', 'shape': 'square', 'area': 25, 'edges': 4, 'perimeter': 20}

#Getting only the values, keys or both (can be used in loops)
dict1.values() #dict_values(['red', 'square', 25, 4, 20])
dict1.keys() #dict_keys(['color', 'shape', 'area', 'edges', 'perimeter'])
dict1.items() 
#dict_items([('color', 'red'), ('shape', 'square'), ('area', 25), ('edges', 4), ('perimeter', 20)])

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Contributed on May 20 2020

MitroGr

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python dictionary

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#title			:Dictionary Example
#author         :Josh Cogburn
#date           :20191127
#github         :https://github.com/josh-cogburn
#====================================================

thisdict = {
	"brand": "Ford",
 	"model": "Mustang",
 	"year": 1964
}

#Assigning a value
thisdict["year"] = 2018

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Contributed on Nov 27 2019

Different Dotterel

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dictionary in python

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dict = {"apple": "fruit", "ball": "object", "cricket": "sports"}

#how to print?

print(dict["cricket"])

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Contributed on Jan 11 2022

Coding boy Hasya

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dictionary in python

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my_dict = {"key": "value", "a": 1, 2: "b"}
print(my_dict["key"])
# Output: value
print(my_dict["a"])
# Output: 1
print(my_dict[2])
# Output: b

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Contributed on Jan 30 2021

AlarmClockMan

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dictionary in python

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# Dictionaries in Python are used to store set of data like Key: Value pair

# the syntax of a dictionary in Python is very simple we use {} inside that
	# we define {Key: Value}, to separate multiple values we use','
programming_dictionary = {
    "Bug": "An error in a program that prevents the program from running as expected.",
  
    "Function": "A piece of code that you can easily call over and over again.",
  
  	"Loop": "The action of doing sommething again and again",
}
# to retrieve the values from a dictionary we use the Key name as an Index
# retrieving the Function's definition
print(programming_dictionary["Function"])	# this will print the definition of Function

# if you wanna print all the entries in the dictionary you can do that by for loop
for key in programming_dictionary:
  print(programming_dictionary[key])	# prints all entries
  
# adding items to a dictionary
# the following code will add another entry to the dictionary called Variable
programming_dictionary["Variable"] = "The label to store some sort of data"
print(programming_dictionary["Variable"])

# editing the values of a key 
# editing the value of variable
programming_dictionary["Variable"] = "Variables are nothing but reserved memory locations to store values. This means that when you create a variableyou reserve some space in memory"

# if you learnt something from this please upvote it

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Contributed on Jan 03 2021

Tejas Naik

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dictionary in python

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#A dictionary has key-value pairs. Here 1,2,3 are the keys and Item1,Item2,Item3 
#are their values respectively. 
dictionaryName = { 1: "Item1", 2: "Item2", 3: "Item3"}

#retrieving value of a particular key
dictionaryName[1]

#retrieving all the keys in a dictionary
dictionaryName.keys()

#retrieving all the values in a dictionary
dictionaryName.values()

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Contributed on Nov 01 2020

iTry

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dictionary in python

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# Dictionaries in Python

ages = {"John": 43, "Bob": 24, "Ruth": 76} # Marked by { at beginning and a } at end

# ^^^ Has sets of keys and values, like the 'John' and 43 set. These two values must be seperated by a colon

# ^^^ Sets of values seperated by commas.

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Contributed on Oct 18 2020

aguy11

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dictionary python

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# dictionary refresh


new_dict = {
    "first":"1,2,3",
    "second":"321",
    "third":"000",
}


# adding to dictionary
new_dict.update({"fourth":"D"})
print(new_dict)

#removing from dictionary
new_dict.pop("first")
print(new_dict)


new = {"five":"888"}
#updating a dictionary
new_dict.update(new)
print(new_dict)

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Contributed on Oct 26 2022

An7wan

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dictionary in python

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Polygon = {
	"PolygonName" : "Tetrahectaseptadecagon"
	"PolygonSides" : 417
}

print("A", (Polygon["PolygonName"]) "has", (Polygon["PolygonSides"]), "sides")

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Contributed on Jun 27 2022

Rick Astley

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dict python

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a = {'a': 123, 'b': 'test'}

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Contributed on Feb 05 2021

Felipebros

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