Python program that parses the git log output and writes the formmatted output to a separate file

git_log_formatter.py

import re

first_message_index = 4
step_index = 6

def get_first_alphabetic_character_pos(s):
    m = re.search(r'[a-z]', s, re.I)
    if m is not None:
        return m.start()
    return 0

with open('log.txt') as f:
    lines = f.readlines()
desired_lines = lines[first_message_index::step_index]

formatted_list = list()

for line in desired_lines:
    stripped = line.strip()
    start_pos = get_first_alphabetic_character_pos(stripped)
    without_ticket_no = stripped[start_pos::]
    formatted_line = without_ticket_no.capitalize()
    formatted_list.append(formatted_line)

formatted_list.reverse()

single_string = ".\n".join(formatted_list)

f = open("formatted.txt", "w")
f.write(single_string)
f.close()