The __str__ and __repr__ method do not work.

[tushushu]

I am implementing a struct named IndexList as below:

#[pymethods]
impl IndexList {
    // Arrange the following methods in alphabetical order.

    #[new]
    pub fn new(vec: Vec<usize>) -> Self {
        IndexList { _values: vec }
    }

    fn __repr__(&self) -> String {
        format!("IndexList({})", self.__str__())
    }

    fn __str__(&self) -> String {
        let v = &self._values;
        let n = v.len();
        if n < 100 {
            format!("{:?}", self._values)
        } else {
            format!(
                "[{}, {}, {}, ..., {}, {}, {}]",
                v[0],
                v[1],
                v[2],
                v[n - 3],
                v[n - 2],
                v[n - 1]
            )
        }
    }

After compiled by maturin develop command, here is the output.

>>> import ulist as ul
>>> arr = ul.from_seq([True, False, True, True], dtype='bool')
>>> idx = arr.to_index()
>>> idx
<builtins.IndexList object at 0x7fa285193f00>
>>> str(idx)
'<builtins.IndexList object at 0x7fa285193f00>'
>>> idx.__str__()
'[0, 2, 3]'
>>> idx.__repr__()
'IndexList([0, 2, 3])'
>>> 

So it seem that the str and repr methods do not call the __str__ and __repr__ methods here. Are there any suggestions, thanks very much!

[davidhewitt]

What PyO3 version are you using? This would only work in 0.15 or newer.

[tushushu]

I am using version = "0.14.5", thanks so much and let me try newer version to see if the problem still exists.