not all arguments converted during string formatting (while passing arguments to function)

Question

I am getting error "not all arguments converted during string formatting" while running this code please explain how to fix this and what is this error

def multiples(l,n):
    count=0
    for i in l:
        if(i%n==0):
            count+=1
    return count
m=input("no of elements: ")
l=[]
print("enter elements: ")
for i in range(int(m)):
    l.append(input())
n=int(input("enter no to find no.of multiples: "))
print(multiples(l,n))

error:

Exception has occurred: TypeError
not all arguments converted during string formatting
  line 4, in multiples
    if(i%n==0):
  line 13, in <module>
    print(multiples(l,n))
TypeError: not all arguments converted during string formatting

Answer 1

The problem is that the list l that you are passing to multiples has strings inside instead of int which causes the code to call % on a string instead of modulo. You don't get a straightforward error as % acts a format string like "% is my name" % name. To fix it you can convert the input() to int as so: l.append(int(input()))

so your overall code would be

def multiples(l,n):
    count=0
    for i in l:
        if(i%n==0):
            count+=1
    return count
m=input("no of elements: ")
l=[]
print("enter elements: ")
for i in range(int(m)):
    l.append(int(input()))
n=int(input("enter no to find no.of multiples: "))
print(multiples(l,n))