Method readline

crates/stdlib/src/_tokenize.rs:42–67

(&self, vm: &VirtualMachine)

    impl PyTokenizerIter {
        fn readline(&self, vm: &VirtualMachine) -> PyResult<String> {
            let raw_line = match self.readline.invoke((), vm) {
                Ok(v) => v,
                Err(err) => {
                    if err.fast_isinstance(vm.ctx.exceptions.stop_iteration) {
                        return Ok(String::new());
                    }
                    return Err(err);
                }
            };
            Ok(match &self.encoding {
                Some(encoding) => {
                    let bytes = raw_line
                        .downcast::<PyBytes>()
                        .map_err(|_| vm.new_type_error("readline() returned a non-bytes object"))?;
                    vm.state
                        .codec_registry
                        .decode_text(bytes.into(), encoding, None, vm)
                        .map(|s| s.to_string())?
                }
                None => raw_line
                    .downcast::<PyStr>()
                    .map(|s| s.to_string())
                    .map_err(|_| vm.new_type_error("readline() returned a non-string object"))?,
            })
        }
    }

    impl fmt::Debug for PyTokenizerIter {