Travis-ci: 'X' object has no attribute 'Y'

Question

The issue was a typo, thanks everyone who tried to help

I'm trying to run a unit test in travis-ci. At one point I have a class which simplified looks like this:

class X:

    def __init__(self, var1):
        self.var1 = var1

    def Y(self):
        return True

    def Z(self):
        return False

    def call_function(self, function):
        output = function(self.Y, self.Z, self.var1)

I then call X.call_function, which has given me no problems in the past when running the program. However, when running this in travis-ci I'm told:

'X' object has no attribute 'Y'

Strangely enough, it does not appear to have an issue with self.Z.

Does anybody know what causes this and how to fix it?

Update: For clarity, the function parameter would be something like:

def function(func1, func2, var1):
    if type(var1) == int:
        func1()
    else:
        func2()

And then the main file would be something like:

x = X(3)
x.call_function(function)

all indents are right here? `call_function` is inside the class? if it is what happens to the `self`? — Mehrdad Pedramfar, Jan 02 '19 at 10:55
@mehrdad-pedramfar you're right, my example was incorrect, I've corrected it — Nathan, Jan 02 '19 at 11:00

GeeTransit · Answer 1 · 2019-01-02T10:58:59.757

1

Your argument of self.Y returns the function itself, not the value it returns. If instead your self.Y was set to True, the call_function function would work. To run the function, you can put brackets after the function name.

Edit: Looks like you've forgotten about adding self. No worries, here's the working code. (The self argument is called automatically when you make an instance of a class. For more info on self, check this out)

Edit 2: I've changed it so it returns the function. The self parameter is all that's needed.

Here's your fixed code:

class X:

    def __init__(self, var1):
        self.var1 = var1

    def Y(self):
        return True

    def call_function(self, function):
        output = function(self.Y, self.var1)

edited Jan 02 '19 at 10:58

answered Jan 02 '19 at 10:54

GeeTransit

1,458
9
22

I don't wish to have the result, I want the function. In reality the function is called to verify if it was successful. – Nathan Jan 02 '19 at 10:56
I've changed it so it returns the function. Did you want it differently? – GeeTransit Jan 02 '19 at 11:02
This is exactly what I want and use, but Travis does not recognize `self.Y` as an attribute of `X`. – Nathan Jan 02 '19 at 11:04
Could you give me an example of what `X.call_function` would take as the `function` parameter? – GeeTransit Jan 02 '19 at 11:07
I'll add it to the post – Nathan Jan 02 '19 at 11:08
I've added an example of `function` – Nathan Jan 02 '19 at 11:11
It looks like your code works. I'm going to try to get it to not work... – GeeTransit Jan 02 '19 at 11:11
Does your code do something along the lines of `x = X(1)`? When I run it, all is well. – GeeTransit Jan 02 '19 at 11:14
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/186042/discussion-between-geetransit-and-nathan). – GeeTransit Jan 02 '19 at 11:15

sahasrara62 · Answer 2 · 2019-01-02T10:59:35.253

1

you have to add the self with the function in class if it is not @static,class or abstract method

class X:

    def __init__(self,var1):
        self.var1 = var1

    def Y(self):
        return True

    def call_function(self, function):
        output = function(self.Y(), self.var1)

edited Jan 02 '19 at 10:59

answered Jan 02 '19 at 10:55

sahasrara62

10,069
3
29
44

Thanks, my example was too much simplified, but the real thing does have that. – Nathan Jan 02 '19 at 10:58

Travis-ci: 'X' object has no attribute 'Y'

2 Answers2