Formatting containers using format() in Python
Last Updated :
06 Mar, 2023
Let us see how to format containers that were accessed through __getitem__ or getattr() using the format() method in Python.
Accessing containers that support __getitem__
a) For Dictionaries
Python3
founder = { 'Apple' : 'Steve Jobs' , 'Microsoft' : 'Bill Gates' }
print ( '{f[Microsoft]} {f[Apple]}' . format (f = founder))
|
Output :
Bill Gates Steve Jobs
f[Microsoft] is replaced by Bill Gates and f[Apple] is replaced by Steve Jobs.
b) For lists
Python3
list_items = [ 1 , 3 , 5 , 7 , 9 , 11 ]
print ( '{l[3]} {l[5]}' . format (l = list_items))
|
Output :
7 11
Accessing attributes on objects that support getattr()
a) For Class
Python3
class Program( object ):
language = 'Python'
print ( '{p.language}' . format (p = Program()))
|
Output :
Python
p.language is replaced by Python as language is an attribute of Program
Accessing the nested structure
Python3
class Program( object ):
language = 'Python'
versions = [{ 'version' : '1' }, { 'version' : '2' }, { 'version' : '3' }]
print ( '{p.language}: {p.versions[2][version]}' . format (p = Program()))
|
Output :
Python: 3
Share your thoughts in the comments
Please Login to comment...