How to pad zeroes to a string? How to pad zeroes to a string? python python

How to pad zeroes to a string?


Strings:

>>> n = '4'>>> print(n.zfill(3))004

And for numbers:

>>> n = 4>>> print(f'{n:03}') # Preferred method, python >= 3.6004>>> print('%03d' % n)004>>> print(format(n, '03')) # python >= 2.6004>>> print('{0:03d}'.format(n))  # python >= 2.6 + python 3004>>> print('{foo:03d}'.format(foo=n))  # python >= 2.6 + python 3004>>> print('{:03d}'.format(n))  # python >= 2.7 + python3004

String formatting documentation.


Just use the rjust method of the string object.

This example will make a string of 10 characters long, padding as necessary.

>>> t = 'test'>>> t.rjust(10, '0')>>> '000000test'


Besides zfill, you can use general string formatting:

print(f'{number:05d}') # (since Python 3.6), orprint('{:05d}'.format(number)) # orprint('{0:05d}'.format(number)) # or (explicit 0th positional arg. selection)print('{n:05d}'.format(n=number)) # or (explicit `n` keyword arg. selection)print(format(number, '05d'))

Documentation for string formatting and f-strings.


matomo