Add Padding Around String

h1ros

Goal¶

This post aims to introduce how to add padding around string.

Reference:

In [6]:

string = 'abc_def'
num = 10

There is a method for string, called ljust

S.ljust(width[, fillchar]) -> str

In [3]:

string.ljust(10)

Out[3]:

'abc_def   '

In [5]:

string.ljust(10, 'a')

Out[5]:

'abc_defaaa'

In [10]:

# the chaaracter after ":" is the one used for padding
'{:010}'.format(num)

Out[10]:

'0000000010'

In [13]:

# python >= 3.6 
# the character after ":" is the one used for padding
f'{num:010}'

Out[13]:

'0000000010'