Utils¶

def run_length_encode(dna: str) -> str:
    """Return the run length encoding of a string

    Usage:

    ```python
    dna = "A"*3 + "G"*2 + "C" + "T"*5 + "A"*6 + "GCCT"
    dna_rle = run_length_encode(dna)
    ```

    """

    return _run_length_encode(dna, use_regex=True, return_list=False)  # type: ignore

def run_length_decode(dna_rle: str) -> str:
    pat = _PAT_RLE_DECODE
    return "".join([c * int(n) for _, n, c in pat.findall(dna_rle)])