Gist upload Script.

post_gist.py

from urllib import request
import os
import json
import argparse


class Gist:
    token = os.environ["GIST_TOKEN"]
    url = "https://api.github.com/gists"

    def post(self, description, file_name, content, public="true"):
        headers = {
            "Accept": "application/vnd.github+json",
            "Authorization": f"Bearer {self.token}",
        }
        params = {
            "description": f"{description}",
            "public": f"{public}",
            "files": {f"{file_name}": {"content": f"{content}"}},
        }
        params_json = json.dumps(params)
        data = params_json.encode("utf-8")
        req = request.Request(self.url, data, headers)

        with request.urlopen(req) as res:
            result = res.read().decode("utf-8")
            print(json.loads(result)['html_url'])


if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("-d", help="description")
    parser.add_argument("file_name", help="file_name")
    args = parser.parse_args()

    with open(args.file_name) as f:
        content = "".join(f.readlines())

    gist = Gist()
    gist.post(description=args.d, file_name=args.file_name, content=content)

Gistへアップロードするスクリプト - Mae向きなブログ