Dictionary in Python
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- เผยแพร่เมื่อ 12 มิ.ย. 2024
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In this lecture we are discussing about Dictionary:
-- if you want to accessing the data by using key then we are using dictionary
-- Dictionary uses key and value pair
key and value
in python
data={1:'Navin',2:'kiran',4:'Harsh'} # 1 is key and Navin is value and 2 is key and kiran is value and 4 is key and Harsh is value
property of dictionary:
-- key must be immutable and unique
immutable means we can't change the value
unique means we can't repeat the key
-- value can be anything
-- we can access the value by using key
-- we can't access the value by using index
-- we can't access the value by using value
fetching the value from dictionary
data[4] # we can access the value by using key here key is 4
data[3] # you get error because key is not present in dictionary
get() method:
-- we can access the value by using get() method
-- if key is present in dictionary then it will return the value
-- if key is not present in dictionary then it will return None
data.get(1)
data.get(3) # not get anything
print(data.get(3)) # it will return None
data.get(1,'Not Found')
data.get(3,'Not Found')
use of zip() method:
-- we can combine the two list by using zip() method
-- it will return the tuple
keys = ['Navin','Kiran','Harsh']
values=['Python','Java','JS']
use of dict() method:
-- we can convert the tuple into dictionary by using dict() method
data=dict(zip(keys,values))
data['Kiran']
data['Monika'] # it will give error because key is not present in dictionary
add the value in dictionary:
data['Monika']='CS'
data
delete the value from dictionary:
del data['Harsh']
Nested Dictionary:
-- we can store the dictionary inside the dictionary
prog={'JS':'Atom','CS':'VS','Python':['Pycharm','Sublime'],'Java':{'JSE':'Netbeans','JEE':'Eclipse'}}
prog
prog['JS']
prog['python'][1]
prog['Java']
prog['Java']['JEE']
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Bro thank you so much, i got hired because of you,i owe you alot.
I want to ask you whether this series is enough to understand all python concepts?
In which company u hired??
@Harsha I see you are a man of culture
@@pegasus3642 S T O N K S
Bro which company u hired can u tell me that
I am a child and learning python from you. You are giving so much knowledge in a funny way. Wow, well done.
@arjun anand even i am 11 ! . literally if you ask anyone at this age that do you do programming , the answer will be no because it is tough as per their perspective . but if you have a teacher like navin sir you can learn anything at any age ! . navin sir rocks !!
@arjun anand Kids are smart these days... I'm 13 and Im struggling with Python lol..
What is your age, I am 12.
@arjun anand And I am 16 Struggling with Python 😂😂.
Good that you Love doing this. All the best brother
That's good for all of you as I have mastered python.
What a way of teaching 😎 I'm impressed ❤️and i must say that before these lectures I don't know even a single code in python but, now I can write python code and it will work 😎😅.
I have finally discovered the best channel for learning Python. Your teaching style is truly awesome.
Navin, love your videos!
I am studying python to further my career as a network engineer and obtain my PCEP/PCAP certification and CCIE.
You are a GEM Sir. Love your videos. Clear and concise. Appreciate all of your efforts.
These are short, effective, and easy to follow tutorials. Keep the hard work
the way that your conveying the subject its marvelous.... we have no words to say about you.... even small kids also understand your sessions.. really very thankful to navin reddy sir...
Thank you so much. I started this few weeks ago. Very Helpful.
These are so basic yet so confusing concepts! One needs a good practice to be good at this! A good series for clearing all basic doubts. Thank you!
There are four is this complex data types in Python, which means you have to find a way to distinguish between them in your own way if you understand them. A good place to be bro
Thank you Naveen for this great tutorial
I would like to add some more point about sets
1) To create an empty set use
>>s1 =set()
because if you use
>> s1 = { }
and check >> type(s1)
you will get , which means it is treated as an dictionary instead of empty set.
That's great👏👏... It helps the begginers alot
Thanks bro 👍
Good one mate...
Bro when I type s1= set(). It shows type error and also shows tuple object is not callable. Pls explain bro what I did wrong
@@kingofking481 i think it may be the problem with version you installed...
he taught me the same thing my teacher thought me for 2 months in 12 mins
hats off !
For real??
@@virajaskhapli6097 no cap
Thank you for the video. Dictionary takes on a whole new meaning on the Internet.
New to coding. Learning from your channel, everything till now has been understandable and crystal clear. Hoping i will not give up like i give up on everthing else. Fingers crossed !!!!!
As a Beginner for the programming It's very helpful for me understand basics.
Sir ,I feel very lucky that I find your channel to learn python .Your teaching way is amazing .Thankyou so much sir ❤️
Whenever i confused about programing i always open this channel 👍👍👍
Hi Navin,
Awesome lecture, interesting to learn new things.
Since your lecture is very interesting, we will not miss even a single word. I found out a mistake from video, might be by mistake you told this
You said "create dictionary with the help of "list" which is correct, but you also mentioned u can create using "set" which is wrong, because key value mapping will be improper because set will not follow sequence
Thanks
Yes
This ways perfect for the easily learn about dictionary of python ... thanku sir for the easily teaching..
The way you are teaching is amazing ✨
i never see anyone who teach python like you , awesome video
you are the one who give pure knowledge..in TH-cam best channel ever seen....
Wow really wonderful explanation style with utmost simplicity👌. Grasping and practicing the foundation concepts of Python at the same time with so much ease 👍 Each aspect of dictionary has been explained nicely. Just awesome❤
Very well explained sir thnkuu for helping us all to understand the concepts very easily .its like one of the best video i have watched on dictionary😇😇😇
Very Helpful Tutorial man! cheers!
Yes we really enjoying this series on python programming
This videos is beneficial to all the programmers. And it's clear all the basics point . It is very use full for the beginners
Sir your classes are as much engaging as a video game!
Sir your lectures still rocks!
Love from a student of 11th class.
Me: Finished exams, is in 12th break, and wants to study some Python
Video: 10:54
*Vietnam flashbacks*
lol that war was huge
is ur pfp from an anime?
Sir, thanks a lot for such an informative lesson but I am still a little confused with which brackets can make a video regarding that as well. Thanks
I don't know what to say but this is the most lovely explaination!
The concept is a little tricky, you didn't mention some methods but that's totally fine I also don't wanna get too much confused on just basics. Love the way you explain it. Thanks
I am also a child and now I am learning python from you with an easy way thank you sir
Thanx from powerstar fans💯❤
Bro please give more examples of dictionary in dictionary which mimics a database btw the content is amazing i learned so much from your videos❤️
You make it so simple . Thanks!
Sir u explain awesome...I am 2011 MCA passed out.. was worried how could I learn so many things and keep remember.. but your videos gives positive mindset..thanks a lot
please keep the end screen display after the content is displayed completely, u can keep few extra seconds as buffer to show end screens..Thank u
before i reached 3 minutes i had already subscribed and liked the video because simple is more ...Thank you for the content Sir
I was squeezing my mind about nested dictionary for a long time
thank you so much it was vey helpful
Thank you so much anna free ga explain chestunnanduku
Hi bro...
U r the one of the best teacher for python language....
The best things in your video is I will never boor during your lecture....
At last thanks a lot bro...❣️❣️👍🥰
You are doing well keep it up and you are the best teacher
Thankyou Naveen sir
I wanted to learn python form my childhood but was never possible but because of u it became possible now
thankyou very much!!!!!!1
your teaching is OverPowered. Thanks
Fantastic!! Very well explained. Loved it.
Thank you, Naveen for this great tutorial
Bro thank you so much, I got hired because of you, I owe you a lot.
Hi,
I was wondering if it is possible to create a dictionary that also works in a reverse mode.
But at the same time in the regular mode.
Because i wanna create a translate system.
But than that they translate both ways automatically, without switching the language it self.
Is this possible ?
Thanks
Really your method is absolutely good
Dear Sir,
Very clear and precise.
Thanks,
Thank you for the detailed explanation!
Thanku for explaining the concept in a easy way
I'm new learner, you are awesome I am easily excuting the tasks infact I am enjoying. I've some doubts like how you clean the page and scrolling up page could you please clarify me sir.
dear Navin Sir i m learning PYTHON form your video series and your lectures are very interesting and easy to learn and i become very big FAN of your , so thanks for teaching us Python .
Dear sir , I have learnt C and C++ now i m learning Python then i will learn GUI in through Python but the question is that how can i make my carrier in IT Sector I need your
Guidance
thanks a lot.. got to learn so much from this video.. :)
very nice and effective explanation sir....love your way of joyful teaching....keep going sir
It's so useful as a board student these series are enough to make uh base strong ❤️thanku sir
i watched all your videos on python series before 1 day of my practical exams , i got 29 out of 30 😇
What type of questions, tasks were on your exam?
@@zaderax like , writting program to append data in list( according to user choice ), bubble sort in python ,different b/t list/tuple
at 5:30 , i was thinking that i m now a mastermind in python that 'NOT found' concept
thank alot sir ji
Sir I have a problem that control+space is not working in IDLE in my case...Any another option to list specific function?
Happy Gurupurnima. Thanks for the videos.
hi sir, i am a subscriber to your channel and started python learning from you. i wanted to ask you whether i can get the notes or pdf of python by you.
Wow!! loved it !! Thanks a lot!!!
even your intro sounds are dope . i love u bro .
Hey I love computer But when I joined class 11 I started hating this subject!A guy recommended me your videos and now I started liking the subject a lot!Thanks man Keep it up !
Hello Navin .,..I am Mechanical engineer, by watching your videos I get confidence to jump into IT.
Will you please make videos for SQL.
I want to learn from you only.
Sir you explain difficult concepts so easily
Hi Naveen, Thank you so much for giving a brief on each concept...
Explained really good
Dude i took python as a subject in my semester now i am struggling with it but this man is giving me a hope let's see what happens
Nice explanation Reddy garu.
Very beneficial video...thanks a lot sir.
You really teach very well.👌👌👌👌👏👏👏👏 I really understood it.🙍🙍🙍🙍
Thanks a lot very easy to follow 👍
Small but very very useful.......you are amazing sir
Awesome, very helpful...
Hello there ,
Can we print the whole list / tuple / set / dictionaries without their respective brackets ?
If yes,
Please let me know ur answer sir.
Keep up the good work!
Hey Navin, Thank you so much for the content been learning a lot from this. I had a quick question : When using { } for sets, there is a chance of the content getting mixed up right, the order is not sequence. So when we use { } for keys to keep them unique, then the keys and the values get mix matched right
used IDLE
here is what i mean - for instance there are 4 people whose phones have to be added as per name
key={"MK","PK","LK","NM"} # used a set so only unique values are there
key
{'LK', 'PK', 'MK', 'NM'} # Here is where the problem is the key value changed
values=[1,2,3,4]
values
[1, 2, 3, 4]
x=dict(zip(key,value))
x
{'LK': 1, 'PK': 2, 'MK': 3, 'NM': 4}
so the key does not align to the sequence of the values(the first key with the first value), by using this method. I wanted to aligned the MK -1;PK-2
I do understand that there is another method of doing x={"MK":"Pixel" }for the exact correlation but is there a way to do the above in correlation .
Here is a solution i through but wasn't sure if it was right, instead of the curly bracket { } we can use a [ ] square bracket which will all the exact alignment of keys with values but then there is a chance of duplication so didn't know how to proceed.
Would really appreciate if could you advice a way for this ?
Thank you again for your content on this, it really helped me to get a grasp on the topic
And thanks 😌 sir to giving your important time to us for teaching
Awsm tuts Navin sir.
BRO I am enjoying your way of teaching and making teaching a fun....
Very good training material👏👏👏
Thank you so much, you are doing great work!!!
Thank you so much for all your work!
It's useful 😊 thank you 😊😊
Mutability : tendency to change
Nice, and well described. I am having a conflict with zipping a list of two elements with an identifier of 1 key. Wish python can include a sub list as an identifier and use another list's element as identifier.
Navin sir congrats 8 lakh subs....🎊🎊
Sir is waiting for 1 million subs
@@ChandanKr.16 Yess bro
Sir. Your head seems brighter than my coding carrier..
I really want you to post more videos on python. It really helps. It would be really helpful if you post recursion and backtracking concepts.
Thank you,,very easy to understand !
What is the best website for course material for python in solving problems and getting understand the problems in easy way
Thanks a lot for this tutorial sir 😊
Can we use get () function in dictionary to retrieve dictionary from a dictionary? If yes,how?
sir, ist thing i want to congratulate you, you taught us very well through these sessions.
sir, when we assign additionally value for 3 in the list that is not found, and after when i entered data[3], can't we merge this thing not found in between automatically, like if I entered any number it automatically give not found either
Detailed explanation on python dictionary master
I am trying to merge two lists using 'dict' but it is showing dict object is not callable. I need the reason for this problem?
Thank u so much sir for clear explanation
Please sir,keep on uploading video
Love you from Nepal
Hello Sir,which command is used to clear python shell work space?