Hacky solution converts a single-insert-per-line MySQL dump, to a multiple insert per line MySQL dump.

convert_single_insert_to_multiple.py

import sys

with open(sys.argv[1], 'r') as inf:
    with open('migrate_new/' + sys.argv[1], 'w') as outf:
        line = inf.readline()
        base = ""
        started = False
        counter = 0
        while line:
            if line.startswith("INSERT INTO"):
                if not started:
                    started = True
                    base = line[:-2]
                else:
                    counter += 1
                    base += "," + line[line.find("VALUES ") + len("VALUES "):-2]
                    if counter >= 1000:  # perform 1000 entries at the same time
                        counter = 0
                        base += ';'
                        started = False
                        outf.write(base + "\n")
                        base = ""
            else:
                if base != "":
                    counter = 0
                    base += ';'
                    started = False
                    outf.write(base + "\n")
                    base = ""
                outf.write(line)
            line = inf.readline()
        if base != "":
            outf.write(base + ";\n")