1. Python Open source Many applications Python 3 jupyter notebook
Indentation : no begin end

2. Variable
Case sensitive

3. Type conversion

4. Python data types float : real numbers int : integer numbers
str : string, text
bool : True.False
Python List : [a, b, c]
Collection of variables
Contain any type
Contain different types

5. Subset of lists
Zero based indexing : [1, “ab”, 3.4]
1은 0번째
“ab＂는 1번째

6. List slicing : 를 이용함2 list[index1: index2 ] list[:index] list[index:]
: 를 이용함2
list[index1: index2 ]
index1 부터 index2-1 까지
test[2:4] : text list의 2번째 부터 (4-1) 번째
list[:index]
list[index:] -3 -2 -1 1 2 3 4 5

7. List indexing
List of lists

8. Mutable List Mutable : 내용을 변화할 수 있음 Change list elements
Add list elements
Remove list elements

9. Adding and removing

10. Replace list elements

11. Copying lists
Use = sign to copy lists

12. Copying lists x y
Use list to copy

13. Looping through a list
indentation
for item-variable in list :
# code

14. While loop
while condition :
# code

15. Sorting a list and append an element
sorted()
sort()

16. ranges
range(index) : 0 – (index-1)

17. Dictionary Key와 value로 표현되는 데이터 구조 Mutable Create an empty dictionary
Create a dictionary

18. Delete a dictionary elements
List와 마찬가지로 del
del(list[index])
del(dictionary[key])

19. Unique keys

20. Returning a value and get() function

21. Print dictionary elements

22. Print dictionary items
dictionary.items() 은 key value pair return

23. Dictionary contains a dictionary

24. Print dictionary items

25. Remove items