Python - Lists

Once Again we are here with some python - Lists . 

Commonly List is expressed as it contains some similar materials like groceries bought from the market . Here is my question do you really bring only the groceries item when you come from market ?

Ans : No, You will be packing up some other materials like news paper and something kinda Stuff . 

Then what is List in Python - Similar to the example explained, List is a container where holds the data (int, String, Char, Double, Float and etc..) 

Syntax : 

a = ['', '']

Example : 

>>> a = [1, 2, 3, 4]

>>> a

[1, 2, 3, 4]

>>> b = a

>>> b[2] = 5

>>> b

[1, 2, 5, 4]

>>> a

[1, 2, 5, 4]

# Above Example 1 shows you value a address to value b

# if you try to change in b it adversely effect with a too :)

# So, we have some functions in here

>>> c = list(a)

>>> c

[1, 2, 5, 4]

>>> c[3] = 12

>>> c

[1, 2, 5, 12]

>>> a

[1, 2, 5, 4]

# Now this Example shows that a != c , even with address .

# if you attempt to change c, it does not affect a . 

# Now we append some values inside the list 

>>> c.append('Prasanna')

>>> c

[1, 2, 5, 12, 'Prasanna']

# As i already said , you can insert any data type values inside the List .

# Some Common Function and usage 

Function  -    Explaination

c.pop(params)    - params is the Position of the value, if params == " " then it       

                          pops out the last value