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Description
I'm trying out RustPython to see if I can at some point replace the currently Pyodide based setup (which is monstrous to build) of https://pygments.org/demo/ with RustPython.
Unfortunately one of the first tests (rustpython -m pygments setup.py in a checkout of https://github.com/pygments/pygments) leads to:
Welcome to the magnificent Rust Python 0.1.2 interpreter 😱 🖖
>>>>> import re
>>>>> rx = re.compile(r'(?<!\.)x\b')
>>>>> rx.match('test')
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', vm/src/stdlib/sre/interp.rs:530:64
stack backtrace:
0: rust_begin_unwind
at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:495:5
1: core::panicking::panic_fmt
at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/panicking.rs:92:14
2: core::panicking::panic
at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/panicking.rs:50:5
3: <rustpython_vm::stdlib::sre::interp::OpTwice<F1,F2> as rustpython_vm::stdlib::sre::interp::OpcodeExecutor>::next
4: rustpython_vm::stdlib::sre::interp::OpcodeDispatcher::dispatch
5: rustpython_vm::stdlib::sre::interp::State::pymatch
6: rustpython_vm::function::IntoPyNativeFunc::into_func::{{closure}}
7: rustpython_vm::slots::Callable::tp_call
8: rustpython_vm::vm::VirtualMachine::_invoke
9: <rustpython_vm::builtins::function::PyBoundMethod as rustpython_vm::slots::Callable>::call
10: rustpython_vm::slots::Callable::tp_call
11: rustpython_vm::vm::VirtualMachine::_invoke
12: rustpython_vm::frame::ExecutingFrame::run
13: rustpython_vm::frame::<impl rustpython_vm::pyobjectrc::PyRef<rustpython_vm::frame::Frame>>::run
14: rustpython_vm::vm::VirtualMachine::run_frame
15: rustpython_vm::vm::VirtualMachine::run_code_obj
16: rustpython::shell::run_shell
17: rustpython::run_rustpython
18: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
19: std::thread::local::LocalKey<T>::with
20: rustpython::run
21: rustpython::main
This is with the pip-merg branch.
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