A python script to count the amount of lines of text for all of it's adjacent files & files in sub directories.

LineCounter.py

import os
import os.path
import mimetypes
import locale

def get_clean_path(array):
    somestr = ""
    for x in range(0, len(array) - 1):
        somestr += array[x] + "\\"
    return somestr

def get_line_count(fname):
    if not os.path.isfile(fname):
        return 0

    with open(fname, errors="ignore") as f:
        i = 0
        for i, l in enumerate(f):
            pass
    return i + 1

def is_plain_text(file):
    if (mimetypes.guess_type(file)[0] == 'text/plain'):
        return True
    else:
        return False

path = get_clean_path(os.path.realpath(__file__).split("\\"))

count = 0
for dirpath, dirnames, filenames in os.walk(path):
    for filename in filenames:
        current = dirpath + "\\" + filename
        if is_plain_text(current):
            line_count = get_line_count(current)
            count += line_count
            print("Adding: " + current + "(" + str(line_count) + ")")

locale.setlocale(locale.LC_ALL, 'english')
output = locale.format('%d', count, grouping=True)   # returns '4,294,967,296'

print("Total lines for all files: " + output)