CODEWITHSUNDEEP
python-3.x
Abdul Khan
Abdul Khan

Reputation: 67

What line of code do I need to add to this code in order for it to execute each function?

def f1(x,y):
    return x+y

def f2(x,y):
    return x-y

def f3(x,y):
    return x//y

def f4(x,y):
    return x*y

def f5(x,y):
    return x**y

def f6(x,y):
    return x%y

def f7(x,y):
    return y-x

def f8(x,y):
    return y//x

def f9(x,y):
    return y%x

def f10(x,y):
    return y**x

funcs=[f1,f2,f3,f4,f5,f6,f7,f8,f9,f10]
for i in funcs:
    print(i)
num=eval(input('Enter a number: '))
funcs[i]((3,5))

I know that the issue is with the declaration of i since i get this error message when I run the code:

<function f1 at 0x7f700458de18>
<function f2 at 0x7f7002ee7620>
<function f3 at 0x7f7002ee78c8>
<function f4 at 0x7f7002ee7950>
<function f5 at 0x7f7002ee79d8>
<function f6 at 0x7f7002ee7a60>
<function f7 at 0x7f7002ee7ae8>
<function f8 at 0x7f7002ee7b70>
<function f9 at 0x7f7002ee7bf8>
<function f10 at 0x7f7002ee7c80>
Enter a number: 4
Traceback (most recent call last):
  File "./lists_of_functions2.py", line 37, in <module>
    funcs[i]((3,5))
TypeError: list indices must be integers or slices, not function

What exactly do I need to add to get it to execute?

Upvotes: 0

Views: 29

Answers (2)

mursalin
mursalin

Reputation: 1181

Its not very clear what you are trying to do. But if you are looking for a way to execute each function you just need to call them.

for func in funcs:
    print(func())

you are getting error for funcs[i]((3,5)) because your i is not declared in that scope. if you want to execute all the function for a given input i.e (3,5) do

funcs=[f1,f2,f3,f4,f5,f6,f7,f8,f9,f10]
for func in funcs:
    print(func(3,5))

if you are trying to execute a specific function withing the funcs list, you have to provide a valid index

num=eval(input('Enter a number: '))
# if you want to execute num'th functions from the list
print(funcs[num](3,5))

Upvotes: 2

MosheZada
MosheZada

Reputation: 2399

i is already a function. You are using for loop to iterate over funcs. instead of funcs[i]((3,5)) change it to i directly i(3,5)

Upvotes: 0

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