Day 27 Of Documenting My Learning Journey

[MyrinNew]

What I learnt Today

1. How to define dictionaries using dict constructor and curly braces {}
2. How to access elements in a list usin the .get method() and variable name with brackets[]
3. How to add and update elements in dictionary
4. How to loop through keys , values and both keys and values using a for loop.

On what I learnt Today

Assumption: We have a dictionary of the name Person.


Syntax:

1. Defining: person = {
   "name" : "James" ,
   "age" : 23 ,
   "Occupation" : "Engineer"
   }
2. Accessing Elements = print(person["name"]) OR print(person.get("name"))
3. Adding Elements in a Dictionary
   
   person["status"] = "Graduated"
4. Updating elements in a Dictionary.
   
   person["age"] = 20
5. Removing an Element from a Dictionary
   
   person.pop("status")
6. Looping through respecive keys
   
   for key in person:
   
   print(key)
7. Looping through respective Values
   
   for value in person.values():
   
   print(value)
8. Looping through respective keys and Values
   
   for key , value in person.items():
   
   print(f"{key} -> {value}")

Resources I used

Python refresher series by Bonaventure Ogeto on Youtube.


What's Next

Understanding sets and Tuples.




More...