Method isidentifier

crates/vm/src/builtins/str.rs:1355–1361

(&self)

    #[pymethod]
    pub fn isidentifier(&self) -> bool {
        let Some(s) = self.to_str() else { return false };
        let mut chars = s.chars();
        let is_identifier_start = chars.next().is_some_and(|c| c == '_' || is_xid_start(c));
        // a string is not an identifier if it has whitespace or starts with a number
        is_identifier_start && chars.all(is_xid_continue)
    }

    // https://docs.python.org/3/library/stdtypes.html#str.translate
    #[pymethod]