battle network python code

# -*- coding: utf-8 -*-
"""
Created on Fri Feb  3 07:42:37 2017
@author: Eela6
Python 3.6.0
"""
from collections import defaultdict
from string import ascii_uppercase
import csv


class Chip():
    def __init__(self, name, chip_id, img_filename, element, damage, letters, size, description, location):
        (self. name, self.chip_id, self.img_filename, self.element, self.damage, self.letters,
        self.size, self.description, self.location) = (
                name, chip_id, img_filename, element, damage, letters, size, description, location)

    def __str__(self):
        return self.name
    def __repr__(self):
        args = (self. name, self.chip_id, self.img_filename, self.element, self.damage, self.letters,
        self.size, self.description, self.location)
        return f'Chip{args}'
    def __hash__(self):
        return hash(self.chip_id)

    def as_tuple(self):
        return (self.name, self.chip_id, self.img_filename, self.element, self.damage, self.letters,
        self.size, self.description, self.location)

def generate_chips(filename):
    with open(filename) as file:
        next(file)
        buffer = []
        for line in file:
            if not line.startswith('|-'):
                buffer.append(line)
            else:
                chip = ''.join(buffer)
                chip = chip.split('||')
                yield as_clean_chip(chip)
                buffer = []

def strip_brackets_and_newlines(string):
    string = string.strip('[')
    string= string.strip('\n')
    string = string.strip(']')
    return string
def as_clean_chip(chip):
    def clean_id(id_):
        return id_.strip('|')

    def clean_img_filename(img_filename):
        return img_filename[7:-2]

    def clean_name(name):
        name = strip_brackets_and_newlines(name)
        name = name.split()[0]
        return name
    def clean_and_separate_damage_letters_size(damage_letters_size):
         damage, letters, size = damage_letters_size.split('\n')
         letters = letters.strip('|')
         letters = letters.replace(',', '')
         letters = letters.split()
         size = size.strip('|')
         return damage, letters, size

    def clean_and_separate_letters(letters):
            letters = letters.strip('|')
            letters = letters.replace(',', '')
            letters = letters.split()
    def clean_element(element):
        element = element.split()[-1]
        element = element[:-6]
        if element == 'Null':
            element = 'None'
        return element

    def clean_description(description):
        return strip_brackets_and_newlines(description)
    def clean_location(location):
        location = strip_brackets_and_newlines(location)


    chip_id, img_filename, name, element, damage_letters_size, description, location = chip
    chip_id  = clean_id(chip_id)
    img_filename = clean_img_filename(img_filename)
    name = clean_name(name)
    damage, letters, size = clean_and_separate_damage_letters_size(damage_letters_size)
    element = clean_element(element)
    location = clean_location(location)
    chip = Chip(name, chip_id, img_filename, element, damage, letters, size, description, location)
    return chip

def write_to_csv(filename, chips):
    with open(filename, 'w') as file:
        writer = csv.writer(file)
        header = 'NAME', 'ID', 'IMG', 'SIZE', 'DAMAGE', 'ELEMENT', 'LETTERS', 'SIZE' 'DESCRIPTION', 'LOCATION'
        writer.writerow(header)
        for chip in chips:
            writer.writerow(chip.as_tuple())

def chips_by_letter(chips):
    by_letter = {letter: [] for letter in ascii_uppercase}
    by_letter['*'] = []
    for chip in chips:
        for letter in chip.letters:
            by_letter[letter].append(chip)

    return by_letter
if __name__ == '__main__':
    chips = tuple(generate_chips(input_filename))
    by_letter = chips_by_letter(chips)
    write_to_csv(output_filename, chips)
    for letter in by_letter:
        chip_names = tuple(chip.name for chip in by_letter[letter])
        print(letter, ': ', chip_names)