sort so that any diffs are above no diffs

import csv

import pathlib

import argparse

from functools import partial

CSV_DELIM = ";"

COLUMNS = ["testcase", "Result", "MLD", "MAXIMUM ABS DIFF"]

COLUMNS_GLOBAL = COLUMNS[:1]

COLUMNS_DIFFERENTIAL = COLUMNS[1:]

COLUMNS_DIFFERENTIAL_NOT_MLD = COLUMNS_DIFFERENTIAL[2:]

def create_subpage(

    html_out,

    mld_col_curr = f"MLD-{id_current}"

    mld_col_prev = f"MLD-{id_previous}"

    def sort_func(x):

    def sort_func(x, other_col_pairs):

        """

        Sort function for the rows. Puts missing or invalid values on top as those usually

        indicate crashes. Then sorts by MLD difference in descending order. MLD diffs of zero

            return float("inf")

        diff = float(x[mld_col_curr]) - float(x[mld_col_prev])

        # if no diff in mld col found, check if there is a diff in any other measure

        if diff == 0:

            diff = float("-inf")

            diff_other = 0

            for col_pair in other_col_pairs:

                col_prev = col_pair[0]

                col_curr = col_pair[1]

                diff_other += abs(float(x[col_curr]) - float(x[col_prev]))

            if diff_other > 0:

                diff = -1000000

        return diff

    merged = sorted(merged, key=sort_func, reverse=True)

    other_col_pairs = [(f"{col}-{id_previous}", f"{col}-{id_current}") for col in COLUMNS_DIFFERENTIAL_NOT_MLD]

    merged = sorted(merged, key=partial(sort_func, other_col_pairs=other_col_pairs), reverse=True)

    # remove the unecessary whole path from the testcase names

    for row in merged: