rust/hg-cpython/src/utils.rs
author Rapha?l Gom?s <rgomes@octobus.net>
Mon, 07 Oct 2019 23:17:44 +0200
changeset 43251 970978975574
child 44505 d738b7a18438
permissions -rw-r--r--
rust-utils: introduce a debug util to print the python stack trace Differential Revision: https://phab.mercurial-scm.org/D7057
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use cpython::{PyDict, PyObject, PyResult, PyTuple, Python};
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#[allow(unused)]
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pub fn print_python_trace(py: Python) -> PyResult<PyObject> {
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    eprintln!("===============================");
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    eprintln!("Printing Python stack from Rust");
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    eprintln!("===============================");
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    let traceback = py.import("traceback")?;
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    let sys = py.import("sys")?;
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    let kwargs = PyDict::new(py);
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    kwargs.set_item(py, "file", sys.get(py, "stderr")?)?;
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    traceback.call(py, "print_stack", PyTuple::new(py, &[]), Some(&kwargs))
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}