Script which outputs a key list with 'X'-es on the keys you've verified.

markverified.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

'''
Usage: {} <ksp-fosdem.txt> <result.txt>

Marks which keys you have verified from a keysigning party.

Tested on FOSDEM keysigning party 2017.
'''

import sys
import re


def ask(num):
    userinput = None
    while userinput is None:
        try:
            userinput = input("{:03d}? (y/N/<num>): ".format(num))
        except EOFError:
            print("\nEnter y for yes, anything else for no. A number is a shortcut to enter no and jump to that number.")
    return userinput


def main(infile, outfile):
    with open(infile, 'r') as IN:
        lines = IN.readlines()

    header = True
    xline = re.compile(r'(\d+).+Fingerprint OK.+ID OK')
    okline = "{:03d}  [x] Fingerprint OK        [x] ID OK"
    next_num = 0

    with open(outfile, 'w') as OUT:
        for line in lines:
            if header:
                print(line, end='', file=OUT)
                header = "BEGIN KEY LIST" not in line
                continue

            m = xline.match(line)
            if m:
                num = int(m.group(1))

                if num >= next_num:
                    userinput = ask(num)

                    if userinput.lower() == "y":
                        print(okline.format(num), file=OUT)
                    else:
                        print(line, end='', file=OUT)
                        try:
                            usernum = int(userinput)
                            next_num = usernum
                        except ValueError:
                            pass
                else:
                    print(line, end='', file=OUT)
            else:
                print(line, end='', file=OUT)



if __name__ == "__main__":
    if len(sys.argv) != 3:
        exit(__doc__.format(sys.argv[0]))
    main(sys.argv[1], sys.argv[2])