fmt-table.py

def fmt_table(
    table, between_column_padding_size=5, alternate_brightness=True, left_padding_size=0
):
    output_lines = []
    assert all(
        len(row) <= len(table[0]) for row in table
    ), "no row can have more elements than the header row"
    column_widths = [0] * len(table[0])
    for row in table:
        for i, element in enumerate(row):
            if len(str(element)) > column_widths[i]:
                column_widths[i] = len(str(element))
    column_widths = [x + between_column_padding_size for x in column_widths]
    header = ""
    for i, column_header in enumerate(table[0]):
        if i > 0:
            header += "|"
        header += str(column_header).center(column_widths[i] - 1)  # minus one for the '|'
    output_lines.append(header)
    output_lines.append("".join(["="] * len(header)))
    for row in table[1:]:
        if left_padding_size > 0:
            line = " " * left_padding_size
        else:
            line = ""
        for i, value in enumerate(row):
            line = line + str(value).ljust(column_widths[i])
        output_lines.append(line)
    if alternate_brightness:
        bright = "\033[0;1m"
        reset = "\033[0m"
        for i, line in enumerate(output_lines):
            if i <= 1:
                continue  # skip first 2 lines
            if i % 2 == 0:
                output_lines[i] = bright + line + reset

    return output_lines