Calling from Python Rust function with kwargs fails

I am struggling to get kwargs to work. I understand that just like #[args(args="*")] is for args, #[args(kwargs="**")] is for kwargs.

However when I pack the following using pyo3-pack and try to call test1 with any arguments I get the error MyClass.test1()() takes at most 0 argument (1 given).

What am I doing wrong?

#![feature(custom_attribute)]

#![feature(specialization)]



use pyo3::prelude::*;

use pyo3::types::{PyDict, PyTuple};



#[pyclass]

struct MyClass {}



#[pymethods]

impl MyClass {

    #[staticmethod]

    #[args(kwargs = "**")]

    fn test1(kwargs: Option<&PyDict>) -> PyResult<()> {

        if let Some(kwargs) = kwargs {

            for kwarg in kwargs {

                println!("{:?}", kwarg);

            }

        } else {

            println!("kwargs is none");

        }

        Ok(())

    }



    #[staticmethod]

    #[args(args = "*")]

    fn test2(args: &PyTuple) -> PyResult<()> {

        for arg in args {

            println!("{:?}", arg);

        }

        Ok(())

    }

}





#[pymodule]

fn test123(_py: Python, m: &PyModule) -> PyResult<()> {

    m.add_class::<MyClass>()?;

    Ok(())

}

asked Jan 3 at 1:39

user7810882

5829

add a comment |

I am struggling to get kwargs to work. I understand that just like #[args(args="*")] is for args, #[args(kwargs="**")] is for kwargs.

However when I pack the following using pyo3-pack and try to call test1 with any arguments I get the error MyClass.test1()() takes at most 0 argument (1 given).

What am I doing wrong?

#![feature(custom_attribute)]

#![feature(specialization)]



use pyo3::prelude::*;

use pyo3::types::{PyDict, PyTuple};



#[pyclass]

struct MyClass {}



#[pymethods]

impl MyClass {

    #[staticmethod]

    #[args(kwargs = "**")]

    fn test1(kwargs: Option<&PyDict>) -> PyResult<()> {

        if let Some(kwargs) = kwargs {

            for kwarg in kwargs {

                println!("{:?}", kwarg);

            }

        } else {

            println!("kwargs is none");

        }

        Ok(())

    }



    #[staticmethod]

    #[args(args = "*")]

    fn test2(args: &PyTuple) -> PyResult<()> {

        for arg in args {

            println!("{:?}", arg);

        }

        Ok(())

    }

}





#[pymodule]

fn test123(_py: Python, m: &PyModule) -> PyResult<()> {

    m.add_class::<MyClass>()?;

    Ok(())

}

asked Jan 3 at 1:39

user7810882

5829

add a comment |

I am struggling to get kwargs to work. I understand that just like #[args(args="*")] is for args, #[args(kwargs="**")] is for kwargs.

However when I pack the following using pyo3-pack and try to call test1 with any arguments I get the error MyClass.test1()() takes at most 0 argument (1 given).

What am I doing wrong?

#![feature(custom_attribute)]

#![feature(specialization)]



use pyo3::prelude::*;

use pyo3::types::{PyDict, PyTuple};



#[pyclass]

struct MyClass {}



#[pymethods]

impl MyClass {

    #[staticmethod]

    #[args(kwargs = "**")]

    fn test1(kwargs: Option<&PyDict>) -> PyResult<()> {

        if let Some(kwargs) = kwargs {

            for kwarg in kwargs {

                println!("{:?}", kwarg);

            }

        } else {

            println!("kwargs is none");

        }

        Ok(())

    }



    #[staticmethod]

    #[args(args = "*")]

    fn test2(args: &PyTuple) -> PyResult<()> {

        for arg in args {

            println!("{:?}", arg);

        }

        Ok(())

    }

}





#[pymodule]

fn test123(_py: Python, m: &PyModule) -> PyResult<()> {

    m.add_class::<MyClass>()?;

    Ok(())

}

asked Jan 3 at 1:39

user7810882

5829

I am struggling to get kwargs to work. I understand that just like #[args(args="*")] is for args, #[args(kwargs="**")] is for kwargs.

However when I pack the following using pyo3-pack and try to call test1 with any arguments I get the error MyClass.test1()() takes at most 0 argument (1 given).

What am I doing wrong?

#![feature(custom_attribute)]

#![feature(specialization)]



use pyo3::prelude::*;

use pyo3::types::{PyDict, PyTuple};



#[pyclass]

struct MyClass {}



#[pymethods]

impl MyClass {

    #[staticmethod]

    #[args(kwargs = "**")]

    fn test1(kwargs: Option<&PyDict>) -> PyResult<()> {

        if let Some(kwargs) = kwargs {

            for kwarg in kwargs {

                println!("{:?}", kwarg);

            }

        } else {

            println!("kwargs is none");

        }

        Ok(())

    }



    #[staticmethod]

    #[args(args = "*")]

    fn test2(args: &PyTuple) -> PyResult<()> {

        for arg in args {

            println!("{:?}", arg);

        }

        Ok(())

    }

}





#[pymodule]

fn test123(_py: Python, m: &PyModule) -> PyResult<()> {

    m.add_class::<MyClass>()?;

    Ok(())

}

rust pyo3

asked Jan 3 at 1:39

user7810882

5829

asked Jan 3 at 1:39

user7810882

5829

asked Jan 3 at 1:39

user7810882

5829

asked Jan 3 at 1:39

user7810882

5829

asked Jan 3 at 1:39

user7810882

5829

add a comment |

1 Answer
1

active

oldest

votes

I’m pretty sure this is a bug in PyO3: this check seems to be adding nkeywords for no reason. File a GitHub issue and see what the maintainers say.

answered Jan 3 at 5:51

Anders Kaseorg

1,790918

1

github.com/PyO3/pyo3/issues/318#event-2099748837

– user7810882
Jan 28 at 8:26

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

I’m pretty sure this is a bug in PyO3: this check seems to be adding nkeywords for no reason. File a GitHub issue and see what the maintainers say.

answered Jan 3 at 5:51

Anders Kaseorg

1,790918

1

github.com/PyO3/pyo3/issues/318#event-2099748837

– user7810882
Jan 28 at 8:26

add a comment |

I’m pretty sure this is a bug in PyO3: this check seems to be adding nkeywords for no reason. File a GitHub issue and see what the maintainers say.

answered Jan 3 at 5:51

Anders Kaseorg

1,790918

1

github.com/PyO3/pyo3/issues/318#event-2099748837

– user7810882
Jan 28 at 8:26

add a comment |

I’m pretty sure this is a bug in PyO3: this check seems to be adding nkeywords for no reason. File a GitHub issue and see what the maintainers say.

answered Jan 3 at 5:51

Anders Kaseorg

1,790918

I’m pretty sure this is a bug in PyO3: this check seems to be adding nkeywords for no reason. File a GitHub issue and see what the maintainers say.

answered Jan 3 at 5:51

Anders Kaseorg

1,790918

answered Jan 3 at 5:51

Anders Kaseorg

1,790918

answered Jan 3 at 5:51

Anders Kaseorg

1,790918

answered Jan 3 at 5:51

Anders Kaseorg

1,790918

1

github.com/PyO3/pyo3/issues/318#event-2099748837

– user7810882
Jan 28 at 8:26

add a comment |

1

github.com/PyO3/pyo3/issues/318#event-2099748837

– user7810882
Jan 28 at 8:26

github.com/PyO3/pyo3/issues/318#event-2099748837

– user7810882
Jan 28 at 8:26

add a comment |

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