Question

I’m doing the old 99 bottles song and trying to do it using a While loop, to help me continue to better learn that loop type.

I’m wondering why I would be getting a TypeError when in my code below and what arguments exactly I’m missing?

Here is my code:

# Get number of beers
bottles = int(raw_input("How many bottles of beer? "))

# return invalid response
if bottles < 1:
    print "That's not a good number"

    if bottles == 1:
        s1 = "bottle" 
        s2 = "bottles" 

    elif bottles == 2:
        s1 = "bottles" 
        s2 = "bottles" 

# sing verses
while bottles > 0:
    print "%d %s of beer on the wall," % bottles, s1
    print "%d %s of beer." % bottles, s1
    print "You take one down, pass it around,"
    print "%d %s of beer on the wall." % (bottles - 1), s2
    print
    bottles -= 1

And here is the error:

Traceback (most recent call last):
    File "beer.py", line 47, in <module>
          print "%d %s of beer on the wall," % bottles, s1
TypeError: not enough arguments for format string

I’ve tried using parenthesis around the “bottles, s1” after the %, but still doesn’t help. Any suggestions?

Answer 1

you have to specify multiple arguments as tuple, eg

print "%d %s of beer on the wall," % (bottles, s1)