Lists in Python

The Purpose of this paper is to get required idea of methods of list in python in simplified way
List is a ordered collection of variables
lists can be non homogeneous

This appends the object at end of list


       ls.append('object') #Object will be added to list at the end

ls.clear()

clears the entire list and makes it empty
```
    ls.clear() # clears the entire list
```

It will through error if object is not in list


    ls.index('object') #return the index value of 'object'

It will return Zero if element is not found in list


    freq = ls.count('objrct') # It will return the frequency of That Object in the list

ls.pop()

This function removes last item of list and returns the item
```
    ls.pop() #Removes the last item of the list
```


    ls.insert(index, 'object') #inserts object at given index

ls.sort()

This function returns None and sorts the data inside list

This will not work for non-homogeneous lists
```
    ls.sort() #sorts the items in Ascending order
```
ls.reverse()

This function returns None and reverses the items inside list
```
    ls.reverse()
```
ls.extend()

This function takes the iterable as argument and adds each item to the last
```
    ls = []

    ls.extend('iterable') # returns [i,t,e,r,a,b,l,e]
```
ls.copy()

This function creates a copy of list
```
    ls = old_list.copy()
```
ls.remove()

This Function takes the object inside the list as argument and removes it from the list

If the Object is not present in list it will through error saying 'Object not list'
```
   ls.remove(5) #it will remove 5 from list
```
List as Stack

list in python can be used as a stack, since it has both the methods .append() and .pop().

ls = []
#append
ls.append('a')
ls.append('b)
#pop
ls.pop() 
ls.pop()

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