How do I print a ‘%’ sign using string formatting? [duplicate]

To print the % sign you need to ‘escape’ it with another % sign:

percent = 12
print "Percentage: %s %%\n" % percent  # Note the double % sign
>>> Percentage: 12 %

EDIT

Nowadays in python3 a better (and more readable) approach is to use f-strings. Note that other solutions (shown below) do work as well:

$python3
>>> percent = 12
>>> print(f'Percentage: {percent}%') # f-string
Percentage: 12%
>>> print('Percentage: {0}%'.format(percent)) # str format method
Percentage: 12%
>>> print('Percentage: %s%%' % percent) # older format, we 'escape' the '%' character
Percentage: 12%