Get E621 Tag Parents

#!/usr/bin/env python3

import requests
import time

# set these!
USERNAME = "" # e621 username
API_KEY = "" # e621 api key
# you need to enable API access to get a key.
# to enable API access, you must go to your e621 API page (Account > Manage API Access) and generate an API key.

pages = 400
mode = "aliases" # aliases/implications




# setting up variables for POST request
url = "https://e621.net/tag_" + mode + ".json"
headers = {'user-agent': 'tagAliases/' + USERNAME}
auth = requests.auth.HTTPBasicAuth(USERNAME, API_KEY)

# Input the numbers and namespaces that you want to include here
catMap = {"0":"", "1":"creator:", "3":"series:", "4":"character:", "5":"species:", "8":"lore:"}
relevantCats = ["0", "1", "3", "4", "5", "8"]

# 0 General ""
# 1 Artist "creator:"
# 3 Copyright "series:"
# 4 Character "character:"
# 5 Species "species:"
# 6 invalid "?"
# 7 Meta "meta:"
# 8 Lore "lore:"

for firstCat in relevantCats:
    for secondCat in relevantCats:
        print('starting ' + firstCat + '-' + secondCat)
        for i in range(1, pages+1, 1):
            r = requests.get(url, params = {"search[antecedent_tag][category]": firstCat, "search[consequent_tag][category]": secondCat, "limit": "1000", "search[order]": "tag_count", "page": i, "search[status]": "Approved"}, headers=headers, auth=auth)

            # stop searches if we get any code back other than 200 (OK)
            if (r.status_code != 200):
                print("ERR:", r.status_code)
                exit

            dummyJsonString = 'tag_' + mode
            dummyJson = {dummyJsonString: []}
            if (r.json() == dummyJson):
                print('finished ' + firstCat + '-' + secondCat + ' at page ' + str(i-1))
                break

            f = open(mode + ".txt", 'a')
            for curTag in r.json():
                if(curTag['consequent_name'] != 'avoid_posting' and curTag['consequent_name'] != 'conditional_dnp'):
                    FileLine = catMap[firstCat] + curTag['antecedent_name'] + "\n" + catMap[secondCat] + curTag['consequent_name'] + "\n\n"
                    f.write(FileLine)
                    # ConsoleLine = catMap[firstCat] + curTag['antecedent_name'] + " -> " + catMap[secondCat] + curTag['consequent_name']
                    # print(ConsoleLine)

            f.close()