Placing an if statement within a function?

Question

This is what I have so far:

def delivery(weight):
    if weight > 20:
        return delivery = 20
    if weight >= 20 and weight <= 50:
        return delivery = 20 + (weight)
    if weight > 50:
        return delivery = 10 + (1.2*weight)

delivery(30)

print(delivery)

I continue to get an incorrect outcome that says:

<function delivery at 0x7fb696c2fb90>

When I want my outcome to print 30. How can I fix this?

`delivery == 20` as a statement doesn't accomplish anything. Are you trying to `return` a value? — khelwood, Sep 10 '20 at 10:41
What [documentation](https://www.python.org/doc/) did you read on Python? Please cite it in your question. — Basile Starynkevitch, Sep 10 '20 at 10:41
learning it at university? unsure what you mean @BasileStarynkevitch — Teresa Daveport, Sep 10 '20 at 10:42
Look [here](https://docs.python.org/3/) and take several hours to read documentation. Study also for inspiration some existing open source projects on [github](https://github.com/) or [gitlab](https://gitlab.com/). Spend a few days *reading* things — Basile Starynkevitch, Sep 10 '20 at 10:44
still continue getting the same outcome @khelwood even with that ammendment — Teresa Daveport, Sep 10 '20 at 10:46
See [What is the purpose of a return statement?](https://stackoverflow.com/questions/7129285/what-is-the-purpose-of-the-return-statement) — khelwood, Sep 10 '20 at 10:46
`weight <= 20 and weight >= 50` at the same time is impossible.... — Thierry Lathuille, Sep 10 '20 at 10:46
Stack overflow is not a substitute for starting with basic tutorials. — khelwood, Sep 10 '20 at 10:49
This piece of code shows many misunderstandings. If your lessons don't help you more than this, I would really recommend that you find some friend or tutorial to learn the basics of the language. — Thierry Lathuille, Sep 10 '20 at 10:50
Instead of `return delivery = 20 + (weight)` just do `return 20 + weight` — BoarGules, Sep 11 '20 at 06:21

score 1 · Answer 1 · answered Sep 10 '20 at 10:46

1

I think you got confused between = and ==, the first is an assignment (put right value into left), where the second is comparison, returning true or false depends if the two objects are equal or not.

The output you got is an output where you try to print a function.

answered Sep 10 '20 at 10:46

Aviv Nachman

49
2

Amended but still doesn't work – Teresa Daveport Sep 10 '20 at 10:50

score -1 · Answer 2 · edited Sep 11 '20 at 06:12

-1

def delivery(weight):
  if (weight > 20):
    delivery = 20
  elif weight <= 20 and weight >= 50:
    delivery = 20 + (weight)
  elif weight > 50:
    delivery = 10 + (1.2*weight)
  return delivery


weight = 30

print(delivery(weight))

Use this code for what you expect....

edited Sep 11 '20 at 06:12

JenilDave

606
6
14

answered Sep 10 '20 at 10:49

Karthik Raja N

1
1

This will print 20.. – Aviv Nachman Sep 10 '20 at 10:53
If `weight` is a number less than 20, this will collapse telling you that delivery is not initiated. – Aviv Nachman Sep 10 '20 at 10:54

Placing an if statement within a function?

2 Answers2