Tutorial #21 || Python Dictionaries || Python Data Structures || Python Tutorials for Beginners смотреть онлайн

Tutorial #20 || Tuples in Python || Python Data Structures || Python Tutorials for Beginners video Link: https://youtu.be/kDIHPgL3PcM

Tasks:
1) Take three dictionaries and concatenate all three into one new dictionary
2) A dictionary contains students data( keys → S.No, values → list of name , age ).  Now add a new student data and delete one old student data. Print result in the  format of “S.No : [ name , age ] “  
3) Update your contacts in contact application. 

Sample Dictionary: dict1 = { ' k1 ' : 200, ' k2 ' : 300, ' k3 ' : 400 }
Dictionary Methods :
Description  copy( )  Returns the copy of dictionary 
Example: dict2 = dict1.copy( )  Result: dict2 = { ' k1 ' : 200, ' k2 ' : 300, ' k3 ' : 400 } 

fromkeys( )  Returns specified keys and values 
Example: x = (‘key1’ , ‘key2’) y = 0  newDict = dict.fromkeys(x, y)  Result: newDict = [ ‘key1’ : 0, ‘key2’ = 0 ] 

get( )  Gets the value using particular key. 
Example: dict1.get( ‘ k1 ’ )  Result: 200 

items( )  Returns the list containing tuple for each pair of key and value 
Example: dict1.items( )  Result: dict_items ([('k1', 200), ('k2', 300), ('k3', 400)]) 

keys( )  Similar to get( ) method. 
Example: dict1.keys( )  Result: dict_keys(['k1', 'k2', 'k3'])   

values( )  Returns the list containing tuple for each pair of key and value 
Example: dict1.items( )  Result: dict_items ([('k1', 200), ('k2', 300), ('k3', 400)]) 

pop( )  Removes the value using specified key 
Example: dict1.pop( ‘ k1 ‘ ) 

popitem( )  Removes the key and value at the end of the dictionary 
Example: dict1.popitem( )  Result: dict1 = { ' k1 ' : 200, ' k2 ' : 300 } 

setdefault( )  If key does not exist, this method insert key. Returns the value of particular key 

update( )  Updates the values of specified key 
Example: dict1.update({'color' : 'green'})  Result: dict1 = {'k1': 200, 'k2': 300, 'k3': 400, 'color': 'green'} 

clear( )  Removes all items in the dictionary 
Example: dict1.clear( ) Result: { } 

Follow Python Tutorials: https://www.youtube.com/playlist?list=PLpFY7sqf9mzpm1Eh4uSDWX5haW1CIszyL

If you want to develop games than don't be late visit this playlist almost 40 Tutorials made just learn by using below lin
Follow Unity 2D Game Development Creepy Cat Tutorials:
https://www.youtube.com/playlist?list=PLpFY7sqf9mzrSpUfKZqTic2KzpQDqKs9t

Follow me on:
► Subscribe to my Channel: https://www.youtube.com/haripriyamanne
►Instagram: https://www.instagram.com/haripriya_manne/
►Website: http://haripriyamanne.byethost10.com/portfolio

If you have any queries can mail me to
[email protected]

Music:
https://www.jiosaavn.com/song/family-day/NjIqeERRQ3s
https://wynk.in/music/song/family-day/hu_51034175

Disclaimer- All videos and content used for educational purpose