[FIXED] How do I print a '%' sign using string formatting?

Issue

I've made a little script to calculator percent; however, I wish to actually include the % within the message printed...

Tried this at the start - didn't work...

oFile.write("Percentage: %s%"\n" % percent)

I then tried "Percentage: %s"%"\n" % percent" which didn't work.

I'd like the output to be:

Percentage: x%

I keep getting

TypeError: not all arguments converted during string formatting

Solution

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%

Answered By - El Bert

Answer Checked By - Marilyn (PHPFixing Volunteer)