Module 2: 

About String

Video part 1: About string
- String in double quote
- Sentence use single quote
- doc string, block of string uses triple single quote ''' 

- Use variable that makes sense

Video part 2: String
- print
- print can manualy say where to end by saying ..., end=' '
- Join string : ' '.join(['apple', 'pie'])  -> apple{space}pie
- Split:  myString.split('_') -> becomes a list

Video part 3: String
- len(myString)
- Escape \ tab

Video part 4: lower and upper
- myString.lower()
- myString.upper()
- Can use direct 'apple'.lower()
- myString.strip(): remove white space both ends of the string
- lstrip() and rstring()
- 'a,b,c'.replace(',', '|') -> a|b|c

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Numbers
part 1 & 2:
integer,float,% modulo, // whole number

List
Part 1:
can be anything
[1, 2, 3]
- index 
- slicing [startIndex:endIndex] up to endIndex but not including endIndex

Part 2: list continue
- myList.append()
- myList.insert(insertIndex, 'things to add')
- can do + operation
- list1.extend(list2)
- 'a' in myLIst -> result boolean
- list_1.copy()
- delet member in the list
   list myList.remove(value) -> but only remove the fist occurence
   myList.pop(index), 
   del myList(index)
   
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Tuples 
- Same like list but cannnot change cannot immutable
  When creating a list but don't allow to update
  
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Dictionaries
Part 1:  
- like key-value list {'key1':'value1', .....}
- myTyple['key1'] : error out if key value dosnt exist

Part 2
- myTuples.get('key') : DOES NOT error out if key does not exist -> give None value
- myTyples.keys() : Will get an object of keys  
  -> list(dictionary_keys_object) -> give list of keys
- key_value_list = list(user_info.items()) : To list all key-pair

Part 3: