Python Dictionary Access

python-dictionary-access-.pcisco-1

Like python lists and python tuples, we can access a specific item in a python dictionary. To do this, we use both index method and get method. Beside, we can also access the  complete keys and values in a dictionary. Let’s show these methods with different Python coding examples.

 


You can check also complete Python Dictionary Lessons


 

Firstly, let’s see how to access  a value of a key:value pair.

 

character =        {
  "race": "wizard",
  "name": "Gandalf",
  "color": "grey"
}
print(character["name"])

 

The output of this python code will be:

 

Gandalf

 

python-dictionary-access-.pcisco-1

 

 


You can learn all Python Dictionary Methods


 

Here, we have used index operator. We add the key inside square brackets and access the value of this key. We can get the same result with get() method.

 

character =        {
  "race": "wizard",
  "name": "Gandalf",
  "color": "grey"
}
print(character.get("name"))

 

Gandalf

python-dictionary-access-.pcisco-2

 

We can use these methods in networking liek below:

 

device ={
  "vendor": "Cisco",
  "model": "9000 series",
  "RU": 44
}
print(device["model"])

 

9000 series

 

python-dictionary-access-.pcisco-3

 

device ={
  "vendor": "Cisco",
  "model": "9000 series",
  "RU": 44
}
print(device.get("model"))
9000 series

 

python-dictionary-access-items-4

 

These are the methods used to access any value of a key:value pair. Now, let’s see how to access both all the keys and all the values in a python dictionary.

 


You can learn all How to add a Python Dictionary


 

Accessing Keys and Values

 

Below, we will access  a all keys of a character dictionary.

 

character =        {
  "race": "wizard",
  "name": "Gandalf",
  "color": "grey"
}
print(character.keys())

 

The output of this code will be:

 

dict_keys(['race', 'name', 'color'])

 

how-to-access-dictionary-items-1

 

As you can see above, all the keys are listed. Below, we will access the keys of device dictionary.

 

device ={
  "vendor": "Cisco",
  "model": "9000 series",
  "RU": 44
}
print(device.keys())
dict_keys(['vendor', 'model', 'RU'])

 

 

 Now, let’s access the values of a character and device dictionaries.

 

character =        {
  "race": "wizard",
  "name": "Gandalf",
  "color": "grey"
}
print(character.values())

 

dict_values(['wizard', 'Gandalf', 'grey'])

how-to-access-dictionary-items-2

 

The second networking example will be like below:

 

device ={
  "vendor": "Cisco",
  "model": "9000 series",
  "RU": 44
}
print(device.values())

 

dict_values(['Cisco', '9000 series', 44])

 


 

Accessing Complete Items

 

 

We can access the comlete items in a python dictionary with the help of items function. The return of this fucntion will be as tuple in a list.

 

 

Below, we will access the items of the dictionaries and as an output, we will receive an a tuple in a list.

 

character =        {
  "race": "wizard",
  "name": "Gandalf",
  "color": "grey"
}
print(character.items())

 

dict_items([('race', 'wizard'), ('name', 'Gandalf'), ('color', 'grey')])

 

 

device ={
  "vendor": "Nokia",
  "model": "7950 XRS",
  "location": "IP Core"
}
print(device.items())

 

dict_items([('vendor', 'Nokia'), ('model', '7950 XRS'), ('location', 'IP Core')])

 

 

In this lesson, we have learned how to access the keys and values of a python dictionary. With diffferent exaamples, you can increase your experience on Python Dictionary access methods.

 

 

Back to: Python Programming Course > Python Dictionaries

Leave a Reply

Your email address will not be published.

IPCisco is the Winner of 2019 “Best Certification Study Journey” Category! We are also Finalist of 2020 & 2021 in Cisco IT Blog Awards!

Cisco-ITBlogAwards-2019-Winner-IPCisco-k
ITBlogAwards_2020_Badge-Finalist-BestCertStudy-ipcisco
ITBlogAwars-2021-ipcisco

Python Programming Course

Collapse
Expand
IPCisco on Social Media!

Latest Blog Posts

top-ten-network-certifications-ipcisco
metaverse-jobs-ipcisco.com
Wifi-6-vs-wifi-5-ipcisco.com
16-Reasons-To-Learn-Linux
gns3-vm-ware-installation-guide