Printing Lists

Sample list : 

>>> table_data
[['a', 'b', 'c'], ['aaaaaaaaaa', 'b', 'c'], ['a', 'bbbbbbbbbb', 'c']]

## Best and easiest way to pring the nested lists without much efforts.

>>> for row in table_data:
...     print ("{:<20} {:<20} {:<20}".format(*row))
...     
... 
a                    b                    c                   
aaaaaaaaaa           b                    c                   
a                    bbbbbbbbbb           c  

## Counting the longest value in nested list and then adjusting the output width accordingly.

>>> col_width = max(len(word) for row in data for word in row) + 2
>>> col_width
12
>>> for row in data:
...     print "".join(word.ljust(col_width) for word in row)
...     
... 
a           b           c           
aaaaaaaaaa  b           c           
a           bbbbbbbbbb  c