rustpython-unparser 0.2.6

A complete unparser for RustPython ASTs
Documentation 
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pub fn replace_first_and_last(s: &str, replacement: &str) -> String {
    if s.len() <= 1 {
        return replacement.to_string() + replacement;
    }

    let middle = &s[1..s.len() - 1];

    format!("{}{}{}", replacement, middle, replacement)
}