How do I print a '%' sign using string formatting?
Solution 1
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%
Solution 2
Or use format()
function, which is more elegant.
percent = 12
print "Percentage: {}%".format(percent)
4 years later edit
Now In Python3x print()
requires parenthesis.
percent = 12
print ("Percentage: {}%".format(percent))
Solution 3
The new Python 3 approach is to use format strings.
percent = 12
print("Percentage: {0} %\n".format(percent))
>>> Percentage: 12 %
This is also supported in Python > 2.6.
See the docs here: Python 3 and Python 2
Solution 4
x = 0.25
y = -0.25
print("\nOriginal Number: ", x)
print("Formatted Number with percentage: "+"{:.2%}".format(x));
print("Original Number: ", y)
print("Formatted Number with percentage: "+"{:.2%}".format(y));
print()
Sample Output:
Original Number: 0.25
Formatted Number with percentage: 25.00%
Original Number: -0.25
Formatted Number with percentage: -25.00%
Helps in proper formatting of percentage value
+++
Using ascii value of percentage - which is 37
print( '12' + str(chr(37)) )
Solution 5
format()
is more elegant but the modulo sign seems to be quicker!
http://inre.dundeemt.com/2016-01-13/string-modulo-vs-format-fight/ - shows that modulo is ~30% faster!
Comments
-
Eric1989 over 2 years
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