icinga2-checks/checker/markdown.py

def list_to_markdown_table(array, align: str = None, seperator: str = '|', borders: bool = True):
    """
    https://gist.github.com/OsKaR31415/955b166f4a286ed427f667cb21d57bfd
    Args:
        array: The array to make into a table. Mush be a rectangular array
               (constant width and height).
        align: The alignment of the cells : 'left', 'center' or 'right'.
        seperator:
        borders:
    """
    # make sure every elements are strings
    array = [[str(elt) for elt in line] for line in array]
    # get the width of each column
    widths = [max(len(line[i]) for line in array) for i in range(len(array[0]))]
    # make every width at least 3 colmuns, because the separator needs it
    widths = [max(w, 3) for w in widths]
    # center text according to the widths
    array = [[elt.center(w) for elt, w in zip(line, widths)] for line in array]

    # separate the header and the body
    array_head, *array_body = array

    if borders:
        edge_seperator = seperator
    else:
        edge_seperator = ''

    header = ((edge_seperator + ' ') if borders else '') + f' {seperator} '.join(array_head) + ((' ' + edge_seperator) if borders else '')

    # alignment of the cells
    align = str(align).lower()  # make sure `align` is a lowercase string
    if align == 'none':
        # we are just setting the position of the : in the table.
        # here there are none
        border_left = (edge_seperator + ' ') if borders else ''
        border_center = f' {seperator} '
        border_right = (' ' + edge_seperator) if borders else ''
    elif align == 'center':
        border_left = (edge_seperator + ' ') if borders else ''
        border_center = f' {seperator} '
        border_right = (' ' + edge_seperator) if borders else ''
    elif align == 'left':
        border_left = (edge_seperator + ' ') if borders else ''
        border_center = f' {seperator} '
        border_right = (' ' + edge_seperator) if borders else ''
    elif align == 'right':
        border_left = (edge_seperator + ' ') if borders else ''
        border_center = f' {seperator} '
        border_right = (' ' + edge_seperator) if borders else ''
    else:
        raise ValueError("align must be 'left', 'right' or 'center'.")

    breaker = border_left + border_center.join(['-' * w for w in widths]) + border_right

    # body of the table
    del array[0]
    body = [''] * len(array)  # empty string list that we fill after
    for idx, line in enumerate(array):
        if borders:
            body[idx] = f'{seperator} ' + f' {seperator} '.join(line) + f' {seperator}'
        else:
            body[idx] = f' {seperator} '.join(line)
    body = '\n'.join(body)

    return header + '\n' + breaker + '\n' + body