Method py_isupper

crates/vm/src/anystr.rs:420–430

Unified form of CPython functions: Py_bytes_isupper unicode_isupper_impl

(&self)

    //   Py_bytes_isupper
    //  unicode_isupper_impl
    fn py_isupper(&self) -> bool {
        let mut upper = false;
        for c in self.elements() {
            if c.is_lowercase() {
                return false;
            } else if !upper && c.is_uppercase() {
                upper = true
            }
        }
        upper
    }
}

/// Tests that the predicate is True on a single value, or if the value is a tuple a tuple, then